Add setting to show unlisted console commands

src/console_cmds.cpp

@@ -1618,7 +1618,7 @@ DEF_CONSOLE_CMD(ConListCommands)
 
 	for (const IConsoleCmd *cmd = _iconsole_cmds; cmd != nullptr; cmd = cmd->next) {
 		if (argv[1] == nullptr || strstr(cmd->name, argv[1]) != nullptr) {
-			if (cmd->unlisted == false && (cmd->hook == nullptr || cmd->hook(false) != CHR_HIDE)) IConsolePrintF(CC_DEFAULT, "%s", cmd->name);
+			if ((_settings_client.gui.console_show_unlisted || !cmd->unlisted) && (cmd->hook == nullptr || cmd->hook(false) != CHR_HIDE)) IConsolePrintF(CC_DEFAULT, "%s", cmd->name);
 		}
 	}
 

src/settings_type.h

@@ -221,6 +221,7 @@ struct GUISettings : public TimeSettings {
 	uint8  settings_restriction_mode;        ///< selected restriction mode in adv. settings GUI. @see RestrictionMode
 	bool   newgrf_show_old_versions;         ///< whether to show old versions in the NewGRF list
 	uint8  newgrf_default_palette;           ///< default palette to use for NewGRFs without action 14 palette information
+	bool   console_show_unlisted;            ///< whether to show unlisted console commands
 
 	/**
 	 * Returns true when the user has sufficient privileges to edit newgrfs on a running game

src/table/settings.ini

@@ -5034,6 +5034,12 @@ max      = 1
 proc     = UpdateNewGRFConfigPalette
 cat      = SC_EXPERT
 
+[SDTC_BOOL]
+var      = gui.console_show_unlisted
+flags    = SLF_NOT_IN_SAVE | SLF_NO_NETWORK_SYNC
+def      = false
+cat      = SC_EXPERT
+
 [SDTC_VAR]
 var      = gui.console_backlog_timeout
 type     = SLE_UINT16