Having the option to toggle the GUI on and off would be a great asset when customising your "House/Guildhouse".
Navigation:
Player>House/GuildHouse>Toggle Option List
Toggle list options:
- Toggle GUI (Everything)
- Toggle GUI specifiaclly, example: Toggle off Chat/GChat/Move
- Existing toggle options.
It's not much, it would be beneficial for reducing screen clutter or distractions when editing your own "House/Guildhouse".