Global menu and HUD off/on

Please file a bug and link it here.
All feature requests are tracked on our bug tracker.

Currently, we limit ourselves to gsettings. If there are relevant keys provided by the underlying system, we will discuss with the team and attempt to implement them.

@arvom Let me answer more reasonably:

We can't provide those options as Unity Tweak Tool is built upon gsettings (mainly), options to remove those features would modify system files/remove package(s), which is not something we want to do.

Also since this is an application for the Unity environment, we try to expose the configurability of the environment; the most we'll add are features that allow configurability of Unity's elements. If they're not something you want or use, there are alternative environments , or you can simply choose not to use them. :)

Having said that, I'll look into adding what configuration I can regarding HUD & AppMenu features.

So, long story short - we stick to whatever the Unity devs provide as options in gsettings and sadly neither enabling/disabling HUD, not enabling/disabling the appmenu are in gsettings.
If they end up there we will probably implement them, however that's a pretty big if we're talking about here.

Sorry, if unity-tweak-tool can not do same as Unsettings and I need to
use both utilities.

arvom there is a setting in UTT on Unity/Additional 'Invoke HUD'. You can change the keybinding there and that might fix your problem.
Also check out: http://askubuntu.com/questions/122209/how-do-i-modify-or-disable-the-huds-use-of-the-alt-key

For disabling global menu you can run in terminal: sudo apt-get autoremove appmenu-gtk appmenu-gtk3 appmenu-qt
Also check out: http://lifehacker.com/5887462/how-to-disable-ubuntus-annoying-global-menu-bar

Question was regarding a bug that was mark as "Won't fix".