I think it could be really useful to be able to keybind a toggle On/Off Button for Recommending Target Swaps. on some fights there are times where I don't wanna target swap to something for example the adds on barghast and it would be a big QoL Change to be able to key bind it off in certain situations.

It's not a bad idea, but having something take up a keybind is something of a big deal. I might make it something you can swap with /hek set but it's not a priority at the moment.

/hek set target_swap will be available (so you can macro it) in the next release.