I am working on a map which requires the cube to align itself in specific direction at some point. I was wondering how would I achieve that. I have tried using a trigger to enable phys_keepupright when the cube touches but I cant get it to work.

Any help will be appreciated!

Thanks

The phys_upright as far as I know only works with physics props. In portal the cube is a special entity.
Maybe you can try this first with a physics prop and see if this is the problem.