i have breifly spoken to Ant0n about this in discord and i feel it should share the idea with you guys (and girls)! basically in the GE if you want to buy and sell sets parts at a time which takes up GE lines, and spots for you to buy and sell other items and also takes the process longer as you may quickly sell more popular parts over the not so popular. Often sets have an additional value therefore you lose that additional value. This is mainly aimed at casual players aswell if they dont spend many hours of the day on therefore they can set the offer in GE rather than spend the little time they spend on trying to buy items to continue playing the game.
I'm sure one of the dev team can make an NPC somewhere or even put it as an additional option on max for you to box/unbox your armor
Leave me some feedback, Thanks!