Add the ability to remove views. Also the ability to create exe-standalone with restricting access in flight mode (as in walk mode). This is useful for concealing the unfounded sections of the project for the clients presentation.
hopav , thank you - I will forward everything to our product managers accordingly.
Also, just so you're aware, you could also give your clients an Xbox controller to navigate through the scene and mention that they shouldn't use the A button at all (Instead of the Spacebar). Maybe that would generally be an alternative for you since some may overall prefer navigation with a controller instead of Keyboard+Mouse.
If you already knew about this, simply ignore that part of my post.
Customers are usually very inquisitive. In search of a secret room, they are ready to press any button.