games

So I'm playing devouring swarm in Stellaris (cause I feel I have enough to balance trying to manage my empire without adding on top of it all the diplomacy aspects) and am thinking of invading my neighbors; the problem is that my chokepoint divides in two, and then each division also splits in two; I plan to capture a number of systems up to my next chokepoint, the only problem is that there are a handful of planets that'll also be there.

One of the things that drives me crazy is that I take my deathstack fleet down one hyperlane only for the enemy's forces to come down the other one; I'd like to just destroy all the starbases (the starter and built up ones) but can the planets build something up behind me while I do all that?