Reveal/Hide Creatures to/from specific player characters instead of all of them.

What Feature would you like to see included within TaleSpire?
What does it look like, how does it work, how is it used. Paint us a figurative picture.
It would let me choose who can or cannot see a creature when I use the GM options to hide a creature. Likewise, I would be able to choose to whom I reveal the creature.

What situations would this Feature be useful?
Descriptions, examples, interactions with existing features - whatever you can think of to get your idea across!

This would be useful if one player rolls high enough with perception to see a hidden enemy but another doesn’t. Alternatively, it would be useful if there is an invisible creature but not all the players are able to detect it. 

Additional Thoughts/Details

I like making my fights very tactical, so the layout of the battlefield is important. This feature would help make player communication more important.