[Suggestion] Recipe Books

[notebene.3190]

No big QoL suggestion sticky yet, so I guess we make these and they just roll off into obscurity. :)

 

Take something like the [Trailblazer's Armor Recipe Book](https://wiki.guildwars2.com/wiki/Trailblazer%27s_Armor_Recipe_Book "Trailblazer's Armor Recipe Book"). It would be nice if there was a 'roll up' indicator at the top level that says "You already know these recipes!" if you know everything inside. I can't remember them all, and while the jewelry ones are easy enough to check, the armor ones (18 items) are a bit of a pain.