I don't know if this has already been covered in a suggestion, or even if such is possible, but it would be incredibly handy to have a means by which one token could see something from a particular vantage point, but others could not. For example, consider a two-way mirror. Someone behind the mirror can see the room normally, but someone in front of the mirror can see only their reflection. Passage for the person behind the mirror is still blocked, but vision is not. Another example would be elevation. Someone standing atop a rock might not be seen from the ground, but could easily see things around the rock that were not right up against it. In a similar vein, is there a way that passage can be blocked, but not vision (such as with a window)? The characters should be able to see through it, but not move through it.