I like the idea behind TrophySlots, but in my modpack are much advancements, which are gained by joining. In my case much slots are open initialy. I would like a mode (maybe configurable via configs), where i can set experience to open the slolts, instead of advancements.

You can disable slots unlocked via achievements and instead reward the player the trophy item to unlock slots for them.

[general]
	#Allows you to unlock slots by completing advancements.
	unlockViaAdvancements = false
        #Allows you to unlock slots using trophies.
	canUseTrophy = true

Thats cool and enough to full fill my task Thanks.