Add a way to group LEDs in the UI

Hello,

I haven't seen an issue open about this, so I am not sure if that is already a feature I have missed?

I got 5 Corsair QL Fans linked to a Pro Controller, so it makes a total of 170 LEDs to set up 😅

That would be great to be able to group LEDs to prevent users to have to set every single LED 1 by 1 for every single profile 😊

For developers, that's fine if we do it programmatically, but I'm sure non-programmers would enjoy this feature!

Cheers!