feat(keyboard): selectable main/additional script for the on-screen keyboard

Page 0 was hardcoded to Latin -- Cyrillic/Greek could only ever be the
second, cycled-to page. Settings > Keyboard's Alphabet row splits into
Main (which script the keyboard opens on by default) and Additional
(the second one reached via #@/abc), so a Cyrillic/Greek typist can make
their own script the default instead of always landing on Latin first.
Setting Additional equal to Main collapses back to a 2-page cycle (that
script + Symbols), same rule the old Latin-hardcoded design already used
implicitly.

KeyboardWidget.h: cellStr()/t9GroupStr() now dispatch through
scriptCellStr()/scriptT9GroupStr(), treating Latin as an ordinary peer of
Cyrillic/Greek instead of a special case; scriptHint() replaces
altAlphabetHint() so the #@/abc key's "next page" hint is correct
regardless of which script that lands on; the accent popup's gating
checks the current page's actual script instead of assuming page 0 is
always Latin. Removed the now-dead pageIsAltAlphabet().

NodePrefs gains keyboard_main_alphabet (schema sentinel 0xC0DE001F ->
0xC0DE0020, same append-at-tail/clamp-on-load pattern as every prior
schema growth this file uses). Verified via a real build that the new
field lands in existing tail padding -- sizeof(NodePrefs) is unchanged
at 2712.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

docs/design/solo_ui_framework.md

@@ -175,13 +175,18 @@ the board's sensors actually provide. Expand them with `expandMsg()` at send tim
 
 Two layouts share every grid: **ABC** (one key per letter) and **T9**
 (phone-keypad multi-tap — repeated Enter within `KB_T9_TIMEOUT_MS` cycles a
-cell's letter group, then its digit). `NodePrefs::keyboard_alt_alphabet` adds a
-non-Latin script's own page to the cycle (Latin → alphabet → Symbols → Latin);
-Cyrillic/Greek each define both an ABC grid (`KB_CYRILLIC_CHARS`/
-`KB_GREEK_CHARS`) and a T9 group table (`KB_T9_GROUPS_CYRILLIC`/`_GREEK`) so
-the two layouts always offer the same letters. Latin-diacritic letters (Polish,
-Czech, German, etc.) aren't alt-alphabet pages — they're reached by Hold-Enter
-on a plain Latin cell instead (see `KB_ACCENT_VARIANTS` below).
+cell's letter group, then its digit). Page 0 is no longer hardcoded to Latin:
+`NodePrefs::keyboard_main_alphabet`/`keyboard_alt_alphabet` (Settings >
+Keyboard's Main/Additional rows) each pick a script — Latin, Cyrillic, or
+Greek — for page 0 and page 1 respectively (`KeyboardWidget::mainScript()`/
+`altScript()`); equal values collapse to a single script + Symbols (2 pages
+instead of 3, see `hasAltAlphabet()`). `scriptCellStr()`/`scriptT9GroupStr()`
+dispatch each script to its own ABC grid (`KB_CHARS`/`KB_CYRILLIC_CHARS`/
+`KB_GREEK_CHARS`) and T9 group table (`KB_T9_GROUPS`/`KB_T9_GROUPS_CYRILLIC`/
+`_GREEK`) so the two layouts always offer the same letters regardless of which
+page they're on. Latin-diacritic letters (Polish, Czech, German, etc.) aren't
+alt-alphabet pages — they're reached by Hold-Enter on whichever page currently
+shows Latin instead (see `KB_ACCENT_VARIANTS` below).
 Shift is one-shot by default (capitalises the next letter, including whichever
 candidate a T9 multi-tap cycle settles on) or Hold-Enter to toggle caps-lock;
 Hold-Clear erases the whole field. **UP from the top letter row** enters

docs/solo_features/settings_screen/settings_screen.md

@@ -99,12 +99,13 @@ The **repeater** mode and its flood filters live on their own screen — see **T
 
 | Setting  | Options    | Notes                                                                                              |
 | -------- | ---------- | -------------------------------------------------------------------------------------------------- |
-| Layout   | ABC / T9   | On-screen keyboard style. **ABC**: an a-b-c…z grid, one key per letter (the original layout). **T9**: phone-keypad multi-tap — each key is labelled with its **digit** and a letter group (e.g. `2abc`); repeated **Enter** presses cycle through the letters and then the digit itself. Applies to whichever alphabet page is active (see Alphabet below), not just Latin. |
-| Alphabet | Latin / Cyrillic / Greek | Which extra (non-Latin) script, if any, joins the keyboard's page cycle. **Latin** (default): only the Latin letters and Symbols pages, as before. **Cyrillic**/**Greek** add that script's own page to the same **#@/abc** key's cycle (Latin → alphabet → Symbols → Latin) — no separate key to switch scripts. **Greek** covers the 24-letter alphabet plus final sigma (`ς`) but not the tonos stress accents used in proper Modern Greek spelling. Every alphabet's letters render natively — the display font (a single unified Unicode font used everywhere on-screen) covers all of them, no separate toggle needed. |
+| Layout   | ABC / T9   | On-screen keyboard style. **ABC**: an a-b-c…z grid, one key per letter (the original layout). **T9**: phone-keypad multi-tap — each key is labelled with its **digit** and a letter group (e.g. `2abc`); repeated **Enter** presses cycle through the letters and then the digit itself. Applies to whichever script page is active (see Main/Additional below), not just Latin. |
+| Main | Latin / Cyrillic / Greek | Which script the keyboard **opens on by default**. **Latin** (default) matches earlier releases; pick **Cyrillic** or **Greek** here instead to make that script the one you land on every time, with Latin becoming the one reached via cycling (see Additional below) instead of the other way round. |
+| Additional | Latin / Cyrillic / Greek | The second script added to the same **#@/abc** key's cycle (Main → Additional → Symbols → Main) — no separate key to switch scripts. Setting Additional to the **same** script as Main drops the cycle back to just that script plus Symbols (no second script page at all). **Greek** covers the 24-letter alphabet plus final sigma (`ς`) but not the tonos stress accents used in proper Modern Greek spelling. Every script's letters render natively — the display font (a single unified Unicode font used everywhere on-screen) covers all of them, no separate toggle needed. |
 
 Applies to every on-screen text field (messages, waypoint labels, room passwords, preset names). Earlier releases labelled the grid *QWERTY*; the layout has always been alphabetical, so it is now named **ABC**.
 
-European Latin-diacritic letters (Polish, Czech, Slovak, German, French, Spanish, Portuguese, Nordic, etc.) aren't separate alphabet pages — instead, **Hold Enter** on a plain Latin letter that has accented variants (`a c d e i l n o r s t u y z`) opens a one-row popup of its accents (e.g. holding `a` offers `á à â ã ä å ą`); **LEFT/RIGHT** picks, **Enter** inserts it, **Cancel** dismisses with no change. Holding a letter with no accented variants (e.g. `b`) does nothing.
+European Latin-diacritic letters (Polish, Czech, Slovak, German, French, Spanish, Portuguese, Nordic, etc.) aren't separate alphabet pages — instead, **Hold Enter** on a plain Latin letter that has accented variants (`a c d e i l n o r s t u y z`) opens a one-row popup of its accents (e.g. holding `a` offers `á à â ã ä å ą`); **LEFT/RIGHT** picks, **Enter** inserts it, **Cancel** dismisses with no change. Holding a letter with no accented variants (e.g. `b`) does nothing. Works on whichever page is currently showing Latin, whether that's Main or Additional.
 
 ---
 

examples/companion_radio/DataStore.cpp

@@ -520,6 +520,12 @@ void DataStore::loadPrefsInt(const char *filename, NodePrefs& _prefs, double& no
   rd(&_prefs.bot_commands_room, sizeof(_prefs.bot_commands_room));
   if (_prefs.bot_commands_room > 1) _prefs.bot_commands_room = 0;
 
+  // → 0xC0DE0020: append keyboard_main_alphabet at the tail. A pre-0x20 file
+  // has the old sentinel bytes / EOF here; clamp anything out of range to 0
+  // (Latin), matching the keyboard's original always-Latin-main behaviour.
+  rd(&_prefs.keyboard_main_alphabet, sizeof(_prefs.keyboard_main_alphabet));
+  if (_prefs.keyboard_main_alphabet >= NodePrefs::KB_ALPHABET_COUNT) _prefs.keyboard_main_alphabet = 0;
+
   // Schema sentinel: bumped on layout changes. Mismatch means an older file
   // (or a different schema); rd() already zero-inits any fields not present,
   // so we just log it — next savePrefs writes the current sentinel.
@@ -723,6 +729,7 @@ void DataStore::savePrefs(const NodePrefs& _prefs, double node_lat, double node_
     file.write((uint8_t *)_prefs.bot_reply_room,     sizeof(_prefs.bot_reply_room));
     file.write((uint8_t *)&_prefs.bot_commands_ch,   sizeof(_prefs.bot_commands_ch));
     file.write((uint8_t *)&_prefs.bot_commands_room, sizeof(_prefs.bot_commands_room));
+    file.write((uint8_t *)&_prefs.keyboard_main_alphabet, sizeof(_prefs.keyboard_main_alphabet));
 
     // Tail sentinel — must be last. See NodePrefs::SCHEMA_SENTINEL. Its write is
     // the one we check: once the flash fills, writes return 0, so a good

examples/companion_radio/NodePrefs.h

@@ -390,6 +390,15 @@ struct NodePrefs {  // persisted to file
   uint8_t  bot_commands_ch;
   uint8_t  bot_commands_room;
 
+  // Which script (KB_ALPHABET_LATIN_ONLY/CYRILLIC/GREEK) occupies the on-screen
+  // keyboard's page 0 -- its default/opening page -- vs. keyboard_alt_alphabet
+  // above, which occupies page 1. Settings > Keyboard's Main/Additional rows.
+  // Equal to keyboard_alt_alphabet means no second page (see KeyboardWidget's
+  // hasAltAlphabet()). Appended at the tail (see the serialization tripwire
+  // below); default 0 (Latin) matches the keyboard's original always-Latin-
+  // main behaviour for upgraders.
+  uint8_t  keyboard_main_alphabet;
+
   // Single source of truth for the live-share option tables (shared by the Map
   // UI labels and the auto-send engine in UITask).
   static const uint8_t LOC_SHARE_MOVE_COUNT = 4;
@@ -452,7 +461,7 @@ struct NodePrefs {  // persisted to file
   // adding/removing/reordering fields in DataStore::savePrefs/loadPrefsInt so
   // older saves are detected on load and skipped (zero-init defaults kept).
   // High 24 bits identify the file format; low byte is the schema revision.
-  static const uint32_t SCHEMA_SENTINEL = 0xC0DE001F;
+  static const uint32_t SCHEMA_SENTINEL = 0xC0DE0020;
 
   // Bit-index for each home page. Used by page_order (entries store bit+1) and
   // by home_pages_mask. Single source of truth — both HomeScreen::pageBit/bitToPage
@@ -549,6 +558,9 @@ struct NodePrefs {  // persisted to file
 //   3. clamp it on load (an upgrader's file lacks it → stray bytes)
 //   4. bump SCHEMA_SENTINEL's low byte
 // (Padding can also shift sizeof; a "false" trip just means re-check + rebump.)
+// keyboard_main_alphabet (added alongside this bump) landed in existing tail
+// padding -- confirmed via a real build's sizeof() -- so the size is
+// unchanged from before that field existed.
 static_assert(sizeof(NodePrefs) == 2712,
               "NodePrefs layout changed — sync DataStore save/load + clamp, bump "
               "SCHEMA_SENTINEL, then update this size (see steps above).");

examples/companion_radio/ui-new/KeyboardWidget.h

@@ -43,11 +43,14 @@ static const char* const KB_T9_GROUPS[KB_PAGES][9] = {
   { "@#&", "*()", "-_+", "=/\\", ":;'\"", "<>[]", "{}|~", "^$%`", ",." },  // page 1 — symbols
 };
 
-// Additional (non-Latin) keyboard alphabets — NodePrefs::keyboard_alt_alphabet
-// picks which one (if any) joins the Latin/symbols page cycle. Every alphabet
-// here must fall inside the misc-fixed font's U+0020-04FF range
-// (src/helpers/ui/MiscFixedFont.h) since that's what actually draws these
-// glyphs on-screen.
+// Non-Latin keyboard scripts. NodePrefs::keyboard_main_alphabet/
+// keyboard_alt_alphabet (Settings > Keyboard's Main/Additional rows) pick
+// which script occupies page 0 (the keyboard's default/opening page) and
+// which joins it as page 1 -- either can be Latin, Cyrillic, or Greek; the
+// same value in both collapses to a single-script + Symbols cycle (see
+// hasAltAlphabet()). Every alphabet here must fall inside the misc-fixed
+// font's U+0020-04FF range (src/helpers/ui/MiscFixedFont.h) since that's what
+// actually draws these glyphs on-screen.
 //
 // Unlike KB_CHARS (single ASCII byte per cell), these hold UTF-8 strings —
 // Cyrillic is 2 bytes/codepoint — so cells are `const char*`, not `char`.
@@ -271,7 +274,7 @@ struct KeyboardWidget {
   int  accent_group  = -1;      // index into KB_ACCENT_VARIANTS for the held cell's base letter
   int  accent_sel    = 0;       // selected variant within that group
   int  row, col;
-  int  page;        // see totalPages()/pageIsAltAlphabet()/pageIsSymbols() below
+  int  page;        // see totalPages()/scriptAt()/pageIsSymbols() below
   bool caps;
   // Shift is one-shot by default (like a phone keyboard: capitalises just the
   // next letter, then reverts) — Hold-Enter on Shift toggles caps_lock, which
@@ -289,12 +292,17 @@ struct KeyboardWidget {
 
   // Live setting lookup — set once by UITask::begin(). NULL only in tests/tools
   // that construct a KeyboardWidget standalone, in which case isT9() defaults
-  // to ABC and hasAltAlphabet() defaults to Latin-only.
+  // to ABC and mainScript()/altScript() default to Latin-only.
   NodePrefs* prefs = nullptr;
   bool isT9() const { return prefs && prefs->keyboard_type == 1; }
-  bool hasAltAlphabet() const {
-    return prefs && prefs->keyboard_alt_alphabet != NodePrefs::KB_ALPHABET_LATIN_ONLY;
-  }
+  // Which script occupies page 0 (the keyboard's default/opening page) and
+  // which occupies page 1 (reached by the #@/abc cycle key) -- Settings >
+  // Keyboard's Main/Additional rows. Additional equal to Main collapses to no
+  // second page at all (see hasAltAlphabet), same as the old Latin-hardcoded
+  // design's "alt == Latin means no alt".
+  uint8_t mainScript() const { return prefs ? prefs->keyboard_main_alphabet : NodePrefs::KB_ALPHABET_LATIN_ONLY; }
+  uint8_t altScript()  const { return prefs ? prefs->keyboard_alt_alphabet  : NodePrefs::KB_ALPHABET_LATIN_ONLY; }
+  bool hasAltAlphabet() const { return altScript() != mainScript(); }
 
   // T9 multi-tap state: which grid cell is mid-cycle (-1 = none), its cycle
   // position, and when the last Enter landed on it (for the timeout).
@@ -312,54 +320,64 @@ struct KeyboardWidget {
   int gridCols() const { return isT9() ? KB_T9_COLS : KB_COLS_CHAR; }
 
   // ── Page model ────────────────────────────────────────────────────────────
-  // Logical page order: 0 = Latin letters, [1 = the enabled alt alphabet],
-  // last = symbols. Without an alt alphabet this is exactly the original
-  // 2-page Latin/symbols cycle; enabling one inserts its page in the middle,
-  // so the #@/abc key's existing cycle (case 4 below) reaches it for free.
+  // Logical page order: 0 = mainScript(), [1 = altScript(), if it differs],
+  // last = symbols. Without a distinct additional script this is exactly the
+  // original 2-page cycle; a distinct one inserts its page in the middle, so
+  // the #@/abc key's existing cycle (case 4 below) reaches it for free.
   int totalPages() const { return hasAltAlphabet() ? 3 : 2; }
-  bool pageIsAltAlphabet(int pg) const { return hasAltAlphabet() && pg == 1; }
   bool pageIsSymbols(int pg) const { return pg == totalPages() - 1; }
+  // Which script (Latin/Cyrillic/Greek) the given non-symbols page shows.
+  uint8_t scriptAt(int pg) const { return pg == 0 ? mainScript() : altScript(); }
 
-  // ABC-grid cell content as a NUL-terminated UTF-8 string (1 codepoint).
-  // Latin/symbols cells come back through a small scratch buffer since
-  // KB_CHARS stores single ASCII bytes, not strings; alt-alphabet cells are
+  // One script's ABC-grid cell content as a NUL-terminated UTF-8 string (1
+  // codepoint). Latin comes back through a small scratch buffer since
+  // KB_CHARS stores single ASCII bytes, not strings; Cyrillic/Greek cells are
   // literal string-table entries, returned directly.
+  const char* scriptCellStr(uint8_t script, int r, int c) const {
+    switch (script) {
+      case NodePrefs::KB_ALPHABET_CYRILLIC: return KB_CYRILLIC_CHARS[r][c];
+      case NodePrefs::KB_ALPHABET_GREEK:    return KB_GREEK_CHARS[r][c];
+      default: {
+        static char single[2];
+        single[0] = KB_CHARS[0][r][c];
+        single[1] = '\0';
+        return single;
+      }
+    }
+  }
   const char* cellStr(int r, int c) const {
-    if (pageIsAltAlphabet(page)) {
-      switch (prefs->keyboard_alt_alphabet) {
-        case NodePrefs::KB_ALPHABET_CYRILLIC:   return KB_CYRILLIC_CHARS[r][c];
-        case NodePrefs::KB_ALPHABET_GREEK:      return KB_GREEK_CHARS[r][c];
-        default: return "?";
-      }
+    if (pageIsSymbols(page)) {
+      static char single[2];
+      single[0] = KB_CHARS[1][r][c];
+      single[1] = '\0';
+      return single;
     }
-    static char single[2];
-    single[0] = KB_CHARS[pageIsSymbols(page) ? 1 : 0][r][c];
-    single[1] = '\0';
-    return single;
+    return scriptCellStr(scriptAt(page), r, c);
   }
 
-  // T9 group string (UTF-8) for the given cell (0-8), page-aware like cellStr.
+  // One script's T9 group string (UTF-8) for the given cell (0-8).
+  const char* scriptT9GroupStr(uint8_t script, int cell) const {
+    switch (script) {
+      case NodePrefs::KB_ALPHABET_CYRILLIC: return KB_T9_GROUPS_CYRILLIC[cell];
+      case NodePrefs::KB_ALPHABET_GREEK:    return KB_T9_GROUPS_GREEK[cell];
+      default:                              return KB_T9_GROUPS[0][cell];
+    }
+  }
   const char* t9GroupStr(int cell) const {
-    if (pageIsAltAlphabet(page)) {
-      switch (prefs->keyboard_alt_alphabet) {
-        case NodePrefs::KB_ALPHABET_CYRILLIC:   return KB_T9_GROUPS_CYRILLIC[cell];
-        case NodePrefs::KB_ALPHABET_GREEK:      return KB_T9_GROUPS_GREEK[cell];
-        default: return "?";
-      }
-    }
-    return KB_T9_GROUPS[pageIsSymbols(page) ? 1 : 0][cell];
+    if (pageIsSymbols(page)) return KB_T9_GROUPS[1][cell];
+    return scriptT9GroupStr(scriptAt(page), cell);
   }
 
-  // Compact ASCII hint for the #@/abc key when it's about to switch to the
-  // alt-alphabet page. Deliberately ASCII (not the alphabet's own script) so
-  // it renders correctly even when Lemon isn't the user's current font choice
-  // — unlike the alphabet's own grid, this hint is visible from the Latin/
-  // symbols pages too, where render() doesn't force Lemon on (see render()).
-  static const char* altAlphabetHint(uint8_t alt) {
-    switch (alt) {
-      case NodePrefs::KB_ALPHABET_CYRILLIC:   return "CY";
-      case NodePrefs::KB_ALPHABET_GREEK:      return "GR";
-      default: return "?";
+  // Compact ASCII hint for the #@/abc key when it's about to switch to
+  // `script`'s page. Deliberately ASCII (not the script's own glyphs) so it
+  // renders correctly even when Lemon isn't the user's current font choice —
+  // unlike a script's own grid, this hint is visible from every page,
+  // where render() doesn't force Lemon on (see render()).
+  static const char* scriptHint(uint8_t script) {
+    switch (script) {
+      case NodePrefs::KB_ALPHABET_CYRILLIC: return "CY";
+      case NodePrefs::KB_ALPHABET_GREEK:    return "GR";
+      default:                              return "abc";
     }
   }
 
@@ -555,9 +573,7 @@ struct KeyboardWidget {
           lbl = "{}";
         } else {
           int next = (page + 1) % totalPages();
-          lbl = pageIsSymbols(next)     ? "#@"
-              : pageIsAltAlphabet(next) ? altAlphabetHint(prefs->keyboard_alt_alphabet)
-                                        : "abc";
+          lbl = pageIsSymbols(next) ? "#@" : scriptHint(scriptAt(next));
         }
         int tw = display.getTextWidth(lbl);
         display.setCursor(sx + (spec_w - tw) / 2, spec_y);
@@ -722,11 +738,11 @@ struct KeyboardWidget {
         return NONE;
       }
       if (row < rows) {
-        if (!isT9() && page == 0) {
+        if (!isT9() && !pageIsSymbols(page) && scriptAt(page) == NodePrefs::KB_ALPHABET_LATIN_ONLY) {
           int gi = findAccentGroup(cellStr(row, col)[0]);
           if (gi >= 0) { accent_active = true; accent_group = gi; accent_sel = 0; t9_cell = -1; return NONE; }
         }
-        return NONE;   // no variants for this cell, or T9/alt-alphabet/symbols page
+        return NONE;   // no variants for this cell, or T9/non-Latin/symbols page
       }
       return CANCELLED;
     }

examples/companion_radio/ui-new/SettingsScreen.h

@@ -71,6 +71,7 @@ class SettingsScreen : public UIScreen {
     // Keyboard section
     SECTION_KEYBOARD,
     KEYBOARD_TYPE,
+    KEYBOARD_MAIN_ALPHABET,
     KEYBOARD_ALPHABET,
     // Contacts section
     SECTION_CONTACTS, DM_FILTER, CH_FILTER, ROOM_FILTER,
@@ -565,8 +566,12 @@ class SettingsScreen : public UIScreen {
       display.print("Type");
       display.setCursor(valCol(display), y);
       display.print((p && p->keyboard_type) ? "T9" : "ABC");
+    } else if (item == KEYBOARD_MAIN_ALPHABET) {
+      display.print("Main");
+      display.setCursor(valCol(display), y);
+      display.print(NodePrefs::keyboardAlphabetLabel(p ? p->keyboard_main_alphabet : 0));
     } else if (item == KEYBOARD_ALPHABET) {
-      display.print("Alphabet");
+      display.print("Additional");
       display.setCursor(valCol(display), y);
       display.print(NodePrefs::keyboardAlphabetLabel(p ? p->keyboard_alt_alphabet : 0));
     } else if (item == BATT_DISPLAY) {
@@ -924,6 +929,14 @@ public:
       _dirty = true;
       return true;
     }
+    if (_selected == KEYBOARD_MAIN_ALPHABET && p && (left || right || enter)) {
+      int idx = p->keyboard_main_alphabet;
+      if (right || enter) idx = (idx + 1) % NodePrefs::KB_ALPHABET_COUNT;
+      else if (left)      idx = (idx + NodePrefs::KB_ALPHABET_COUNT - 1) % NodePrefs::KB_ALPHABET_COUNT;
+      p->keyboard_main_alphabet = (uint8_t)idx;
+      _dirty = true;
+      return true;
+    }
     if (_selected == KEYBOARD_ALPHABET && p && (left || right || enter)) {
       int idx = p->keyboard_alt_alphabet;
       if (right || enter) idx = (idx + 1) % NodePrefs::KB_ALPHABET_COUNT;

release-notes.md

@@ -6,7 +6,7 @@
 - **On-device channel management.** Messages › Channels gets a **"+ Add channel"** row and per-channel **Edit**/**Delete** — create or join a channel by typing either a passphrase (hashed to the channel secret, same idea as a room password) or the exact 32-hex-character key from a channel QR code. No phone app required.
 - **Tools › Admin — administer a remote repeater/room from the device.** Log into a node you have admin rights on (same self-healing saved-password handshake as room logins) and browse its settings in category tabs — **System** (name, owner info), **Radio** (Frequency/Bandwidth/Spreading factor/Coding rate/TX power), **Routing** (Repeat/Advert interval/Flood advert interval/Max hops), **Actions** (reboot, send advert, sync clock, …) — plus a free-text **Custom command…** escape hatch (with **{}**-key command-name completion) for anything not covered. Radio and Routing fields use a type-appropriate editor instead of raw text — a digit-cursor for Frequency (the same widget Settings' own Radio screen uses locally), discrete-set stepping for Bandwidth/Spreading factor/Coding rate, plain number steppers for the rest, and an ON/OFF toggle for Repeat — adjusting a value costs no mesh traffic until you actually confirm it with **Enter** (**Cancel** sends nothing). Reachable either from **Tools › Admin** (opens the same Nodes list to pick a target) or directly via a repeater/room's own **Hold Enter › Admin** action.
 - **Auto-Reply Bot gains a third target: room servers**, alongside DM and Channel, with its own trigger/reply/commands — the screen is redesigned as a circular tab carousel (**Direct/Channel/Room/Other**, **LEFT/RIGHT** to switch, **UP/DOWN** within a tab) instead of one long list. Each target's **Enable** and **Commands** toggle is now fully independent (they used to secretly share the DM tab's setting for Channel/Room too). New `{name}`/`{hops}` reply placeholders, a DM allow-list (all chat contacts or favourites only), and a dedicated stepper for Quiet Hours.
-- **Keyboard: accent popup, better editing.** Holding **Enter** on a Latin letter with accented variants (`a c d e i l n o r s t u y z`) now opens a one-row popup of that letter's accents — e.g. holding `a` offers `á à â ã ä å ą` — covering every European Latin-diacritic letter (Polish, Czech, Slovak, German, French, Spanish, Portuguese, Nordic, …) from one popup instead of a separate page per language; **Cyrillic**/**Greek** remain full alt-alphabet pages under **Settings › Keyboard › Alphabet**. Shift is now **one-shot** by default (capitalises just the next letter; **Hold Enter** on Shift toggles the old sticky caps-lock back on), **Hold Enter** on Backspace clears the whole field, and **UP** from the top letter row enters a cursor-positioning mode (**LEFT/RIGHT** move; **UP/DOWN** jump to start/end, then continue on to the special row / letter grid if pressed again once already there) so you can edit or insert anywhere in what you've typed, not just at the end.
+- **Keyboard: accent popup, selectable main script, better editing.** Holding **Enter** on a Latin letter with accented variants (`a c d e i l n o r s t u y z`) now opens a one-row popup of that letter's accents — e.g. holding `a` offers `á à â ã ä å ą` — covering every European Latin-diacritic letter (Polish, Czech, Slovak, German, French, Spanish, Portuguese, Nordic, …) from one popup instead of a separate page per language. **Settings › Keyboard** splits **Alphabet** into **Main** and **Additional**: Main picks which script (Latin/Cyrillic/Greek) the keyboard opens on by default, Additional picks the second one reached via the **#@/abc** cycle key — so a Cyrillic or Greek typist can make their own script the default instead of always landing on Latin first. Shift is now **one-shot** by default (capitalises just the next letter; **Hold Enter** on Shift toggles the old sticky caps-lock back on), **Hold Enter** on Backspace clears the whole field, and **UP** from the top letter row enters a cursor-positioning mode (**LEFT/RIGHT** move; **UP/DOWN** jump to start/end, then continue on to the special row / letter grid if pressed again once already there) so you can edit or insert anywhere in what you've typed, not just at the end.
 - **Messages get a messenger-style history.** History bubbles are now sized to their content and anchored **right** (outgoing) / **left** (incoming); the list runs **newest at the bottom**, growing upward as you scroll into the past; the **[+ send]** compose button moved to the right edge to match.
 - **Clock Tools: alarm repeat.** The Alarm screen gains a **Repeat** row (Off/Daily/Weekdays/Weekends) — Hour/Minute merge into one **Time** row edited with an HH:MM digit cursor, and **Repeat**/**Armed** now respond to **LEFT/RIGHT** like every other Settings field instead of Enter-only.
 - **Diagnostics becomes a tab carousel** (Live/System/Font): **System** adds firmware version + build date, device model and the active radio parameters; **Font** is a rendering test card with one sample line per script the on-device font covers, so coverage can be eyeballed directly.