I have somewhat opposite suggestion, but figured it's not big enough to warrant a separate thread.
So, when we're picking ships from our fleet to participate in manual combat, there's a button "all" which, bluntly enough, picks all ships: this include hoard of defenseless tugs, tankers and freighters. This button works ok when all of your ships are combat ones, and it's not really needed when you have 3 or so ships you're going to field, but when I have, say, 2 cruisers, 6 destroyers, 1 freighter & 6 tugs, currently it's either 8 clicks to select ships I want to field or 8 clicks for chosing "all" and then deselecting non-combat ships. I believe players could really benefit from an option to select all combat ships for a cases like this. Perhaps it's possible to fit another button between "deploy" and "all", being "all combat" or somesuch?