Is there any workaround for losing focus on popups?

I like to get rid of invaders by suffocating them in closed rooms. Sometimes this goes wrong and I need to move my crew so they don't die.

But I've lost several of my crewmen because sometimes messages pops up about the enemy is charging its FTL drive or some such when they are selected. After that the focus on the previous selected crew members is lost, and I have to find and select them again. What sometimes is hard because they actually are positioned in a way, I would have to select others as well which had to stay where they are or I have to save my crew one by one. This costs time in an situation where every moment is important, and it starts annoying me because this made me already lose a few well equipped games.

So as the title says:

Is there any workaround for loosing focus of selected crew members in case a informal message pops up?