Okay, I’ll leave my first post up in case it helps someone else. However, now that I’ve looked at your third picture, I’m sure you have some bugs going on. For example, none of the slots to the right of the capacitor donut are obscured by a window, and you’re missing one of your launchers. You can obviously see that none of them are grouped, but you only have 3 showing up.
I suggest you file a support ticket. In the meantime, you can try doing things like exiting and reboarding the ship, pulling off all the fittings and putting them back on, and/or restarting the game. I’m not sure if it will fix anything, but it’s easy enough to try.
Also, you can’t group mixed guns. They have to be the exact same type.
Also, you’re probably better off fitting a full rack of RLML’s. You’re potentially increasing the number of volleys that you’ll have to make in order to kill each frig (which is a big deal when you have 20 volleys and a 35s reload), and aren’t going to get much better dps against larger targets.