Guild Wars 2

Seems like something people think is a good idea, how hard can it be to implement, really? You’re right, maybe start with 2 sets, and to unlock a 3rd or more, purchase from gem store

So, I’m wondering why GW2 doesn’t have a “Set” tab.
Let me explain.
As most players swap out equipment for pve/wvw/dungeons, why is there not something so simple as a “Set” tab. In which you can allocate 6 set pieces and up to 4 weapons. Set A could be healer, Set B could be crit, Set C could have damage set. Instead of trying to follow which items you have and where in your inventory, allocate them here, and simply click the required set/tab after setting it up to have them equipped. I have seen it done in one other game, and works very well.
Anybody else think this would be a good idea to implement?