Changing pivot point on a 3D object and rotate object on all axis

I'm not sure where to post suggestions for updates, thus the reason for this post.

1. Being able to set the pivot point of a 3D object to top, bottom, left bottom etc. would be awesome.

2. Atm. you can only rotate the angle of an object on x. Would be nice to rotate on z and y as well. That way you can rotate a sprite 90 degrees usefull when using a 3D camera. Right now I have to do an edit mesh on a sprite to achieve it.

3. If you create a cube/3d object and make it a solid and set the z-value to say -20. An object at z-value 0 will still collide with it. Maybe this is a restriction of the engine not being fully 3D.

4. Adding obj or fbs files. Probably not possible. Textures not needed. Would be usefull for rockt cliff's etc even as flatshaded.

5. Mouse/Touch control only detects collision on one face of the 3D object and not the collision mesh/bounding box.