C an you move into an occupied square. perform an action, and then move out? It's unclear to me from the rules. Here are a few passages that might apply:
“The definition of “moving through a space” is that the figure
can enter the space as long as it does not end its movement
in the space .”
How do you define “end its movement”? What if I still have movement points left I plan to use?
“After a Massive figure ends its movement in spaces containing
at least one other figure, the Massive figure cannot move any
more during this activation.”
This suggests you can “end your movement” but still have movement points.
“A figure’s action cannot be interrupted while the figure is in a
space containing another figure.”
This suggests you can take an action while in a space containing another figure.