as stated above ^
the neXus walker web controls where it can/can't walk to.
Ruler (Eric) of ImpSoft is the one who controls that.
Ones I know for sure it supports are:
falador 5-agility wall climb
taverly dungeon 70-agility pipe
and for sure know it doesn't support:
Yanille 56?-agility monkeybars. (because it supports the 82-thief picklock door)