Please be more specific.
There is a permission given to groups from ID 3 onwards that lets them to warp to any place, be it allowed for normal players or not.
Check what the any_warp permission does (and any other you need/want to know about in doc/permissions.txt and change them if you want in conf/groups.conf
Also, in conf/battle/gm.conf there's another permission for GMs which lets them warp to unwalkable cells without any problem, but I thin, you aren't looking for this, even if it would somewhat fit your question.
