this might be a tough one to implement...

 but if you could add a 1 button feature to equip a whole loadout:

crystals

pets

clothes

costume

artifacts

tools ( maybe easier if liana's held all that slots items )

alchemy stones

you get the idea, an all-in-one button press. I think a lot of ppl would love this.

changing from cooking to processing? *click* done. 

going to go pve grind? *click* done.

So a unified system in one button click that can have pets/artifacts etc instead of going through 4 menus to accomplish the same thing? If i get the TLDR of it this could be pretty dang awesome 

This would be awesome.

Swap between PVE and PVP sets.

Swap between each lifeskill set.

+1

Doing boat trading, i use sailing gear, then when i get to the trade manager i have to swap to trading gear.   Same could be said about bartering if you have separate sailing and bartering crystal sets.  Or trading and training for your wagon.

Some sort of 'manequin' concept, where for each activity you could outfit that manequin (including things like pets etc).

And then, instead of requiring swapping even if it was only a single click, just have the stats apply from every manequin, affecting whatever you are doing at the moment.  The set of manequins is just the full collection of stats and buffs that you have set up for that character, automatically applied. Grinding? PvE.  Another player comes along? PvP.  Get on your mount to go to town? Training.  Arrive at a residence and start cooking?  Do some processing? Gather? Etc.

There are some problems with this, but that's what would be a nice thing to aim for, to the extent possible.