Activation question

[ainvar]

Hi,
some friends are reading Gruntz rules and here is our first question.
A unit has two activation/turn but each miniature act independently.
Have each mini two activations?
For example, a unit use activation 1 to move all miniatures near a building with a close door. Can a mini spent the second activation to open the door and the rest of miniatures move inside the building? or the unit's activation 2 is open de door?

[wikkid]

You could move the squad up to the building for one action and use a member of the squad to open the door for that Grunt's second action. The rest of the Gruntz in squad could then enter the building for their remaining action.

If the door needed a security hack to open, the Grunt forcing the door would need to pass a skill test.

[ainvar]

Thanks