Let us sort by armor grade on the TP
For now, Wraith, an alternative: When you load up the Trade Post and you’re going through the items, apply the following filters:
Level: Make it between your current level and 2 – 3 levels below your level so you still have something worth having. Otherwise if you’re level 80, set the Level to “80 – 80”.
Category: Armor
Sub Category: All
Rarity: All
Now when you search, find the stats you want and the name of the item type. So for example if you’re a Medium Armor user, you might find armor called “Ravaging Outlaw Coat”. Now reset your search and search for “Ravaging Outlaw” and it will display only items that pertain to those stats and armor name.
I agree though that it would be easier if we could choose Light, Medium or Heavy instead of helm, chest, leggings, etc.