This is what I'm trying to figure out.
In version 3, it was just a Left click drag to select military, and CNTRL + left click drag selected non-military too. Did this get flipped around in v4? I just know I didn't use to have this problem in v3, and now I'm having it. If these got flipped backwards from what they were, this would explain it.
Otherwise, you are just saying I have to use your tactics. I know I'm new to this game, but I kinda like having my ships back by the forcefield, at least at the start of battles. I like to let my static defenses do their work, especially the long range stuff like sniper rifles and ion cannons. I also usually keep a counter-sniper turret back near the ff and command ship, so in one case with Marauders coming in with their sniper guns, I just told my fleet to go hide back by the defensive zone where they wouldn't get hurt. I think that was the battle before the one I lost the command ship, so a click-drag across my units to move them out of that zone might well be what was what moved my forcefield.
Generally, I like keeping my ships on FRD so they don't sit uselessly if I don't notice a battle going on. But, at the same time, I think they charge out towards attackers way too fast. Against the marauders, they want to go charging way out into space and almost leave the planet undefended to any other threats that might warp in. Sometimes, just to delay such a charge, I grab all my units and drag them back to the rear, just to make them go back before they start to charge again. I like having my static defenses have time to shoot up the enemy before my fleet engages.
And yes, I know there is more micromanaging I can do to my fleet. But I don't want to be micromanging my fleet on five planets at once. Sometimes I just want to be zoomed out and give a big order to everyone in the system. If I've got three fights going on, sometimes I just want to that to set everyone on this planet back to FRD and a good rally point, and then go back to the other system that's in trouble. Its when I zoom out and drag a big box across the screen to do just such a selection that I keep seem to be picking up my forcefields and moving them
If everyone uses forcefields to protect their command ships, then what's the point of having them movable?