1. I'm pretty sure this is a reaction to the player wanting to use the Force power again. I'd assume that its actually supposed to be No Action, but somebody forgot that they could list something that way.
2. Use the blast door options on page 151 or the core rules. There are rules for the blast doors, or even a ship hull. Both have a Damage Reduction, HP total and Damage Threshold listed. The rules for damaging objects are on the same page. A group of buzz droids would make short work of the hull option though, so maybe look at the blast doors instead.