FPS inventory with dedicated slots?

Then… Only the 'Melee, Shotguns and Explosives slot should have max two weapons per slot. The other slot should have only one weapon, like a fps arena!

I’ve to specify a thing: there are too many weapons in this game.
So, if I press E (interact) the blueprint assigns the weapon to the dedicated slot in relationship with its class.

I need just this, other tips?