Weapon Set specific skill Gem slots

I would lOVE weapon set specific Gem slots and supports.
a build idea right now needs me to
Switch weapons to use a new passive tree layout
switch rings
and switch 2 active gems and 1 support for another active gem.

I don't want more active gem slots per say but being able to change what gems and supports are used based on weapons set number.
to be clear, not like auras now that let me select which weapon set they apply, but 2 gem slots that configure setups and supports separately for each weapon sets. Ideally allowing duplicate active gems and supports between weapon sets, BUT of course no duplicates within the weapon set, e.g both sets can run the same active gem and supports, but with 1 gem support difference.

The amount of build options this would make possible would be so awesome, but also I may just be being greedy.