Mmmmmm, then using conditions for the states of perception wont work. Cause if placing the condition <Unnoticed> on a creature means it is unnoticed by everyone? Even the ONE person standing in front of it?
Yeah I was kinda thinking when it came to a players turn in the CT the DM could drop Hidden (or observed) and the Applied by was used to keep track of who sees what creature
Troll <Unnoticed> Applied by Greg the Brave
<Unnoticed> Applied by Howd Groop
<Observed> Applied by Strangley Browne
This way the DM keeps track of who's seeing what.
The whole Perception & Stealth Mechanic can get VERY complected with multiple people, targets and differing lines of sight.

