I dont see tpt in the documentation

The description of what TPT does is there, but the permissions isn't listed: https://umod.org/plugins/nteleportation#permissions

TPT - contains settings for enabling instant TPA for friends, clans and teams. Set these false to disable.

Until they add it, See here:
https://umod.org/community/nteleportation/17424-tpt-command-not-auto-accepting?page=1#post-6