The other day we played the campaign (guess this would apply skirmish as well) and on the player's turn his figure had 4 movement point. 1st action, He moved up two and the space was occupied by another rebel hero, he fired his weapon, 2nd action, and moved back to the original starting space.
We didn't see anything in the rules that you can't do this. The only thing is that you can't "end" your movement in an occupied space.
Any clarity on this would be helpful.
Jesse