config field but button count

_debug_replacements.php

@@ -32,6 +32,7 @@ return [
 	'bm3' => '',
 	'bm4' => '',
 	'bm5' => '05',
+	'button_count' => 5,
 	'labels_seq' => ESP_DEMO ? 'TESPTerm Web UI Demo
OK
Cancel


Help' : 'TESPTerm local debug
OK
Cancel


Help',
 	'want_all_fn' => '0',
 

lang/en.php

@@ -80,6 +80,7 @@ return [
 	'term.debugbar' => 'Debug internal state',
 	'term.ascii_debug' => 'Display control codes',
 	'term.backdrop' => 'Background image URL',
+	'term.button_count' => 'Button count',
 
 	'cursor.block_blink' => 'Block, blinking',
     'cursor.block_steady' => 'Block, steady',

pages/cfg_term.php

@@ -154,6 +154,11 @@
 		<input type="hidden" id="show_buttons" name="show_buttons" value="%show_buttons%">
 	</div>
 
+	<div class="Row">
+		<label for="button_count"><?= tr('term.button_count') ?></label>
+		<input type="number" step=1 min=0 max=5 name="button_count" id="button_count" value="%h:button_count%" required>
+	</div>
+
 	<div class="Row">
 		<label><?= tr("term.buttons") ?></label>
 		<input class="tiny" type="text" name="btn1" id="btn1" value="%h:btn1%">