The option to entirely disable using a compass - so if you set the material to NONE, you can't use your compass anymore (no ad-hoc teleporting)

Memorize a memory stone by punching it for the first time. (with or without a compass)

Add a setting for stone-to-stone teleportation

Punching a memorized stone's sign will scroll through your destinations (without spoutcraft)

Right clicking the sign will then teleport you to destination (without spoutcraft)

With spoutcraft, right clicking the sign will show teleport screen.

Add a new optional setting for material cost if using stone-to-stone teleport

Add permission nodes for using stone-to-stone teleport