If you want to find planets with life, try using the star browser, it's the icon with many stars in the left menu thing.Every time when I try to find some planets with life I usually select one of stars in cosmos using F2 button. But is there an option to activate something like auto-searching planets? I mean... We selected one of galactics in the universe, and when we activate option we have highlighted all planets with life on choosen galactic.
But i don't think searching an entire galaxy automatically is possible. You have to consider that galaxies range from having tens of thousands of stars (the really small ones) to tens of trillions (the big ones)
I think something like that would crash SE