Idea: Allowing Spectators in Dungeons

[Pseudopsia]

I dont agree with full control ghost, bc a puzzle would suddenly takes shorter to solve bc uve ghosts looking out ffor clues harmless and notifies things to PT ahead.

Just let spectators views from pt member's POV and no control at all.

I am worried about using spectator to cheat as well. I expanded on in OP what could be done to prevent cheating such as limit the distance of the spectator from any party member.