Your doc is a total mess. Everything is scattered and to actually create a cube in Blender and got it until a community folder ready package is like for ‘dedicated’ people.
Can you go the game engines routes with this? Also navigation, menus, windows… for crying out loud, just stick to what people are used to. We rotate with the mouse while holding a mouse button. Is this a french thing to break with every convention in 3D since the last 2 decades? Guys, I am honest, this was absolutely horrible to use.