Watching through portals and directions

[Navi]

I'd love for characters to have the ability to watch for traffic activity through portals or directions. For example, watching the window in your inn room would send you messaging in regards to who's walking by, as if you were standing in the room itself. I personally like to people watch, but there are other applications. Acting as a scout in some of the areas with arrowslits, or just awaiting for the enemy to arrive, so you know when to begin to attack. Being able to watch a specific direction would be an additional feature. Perhaps have reliability of the information dependent on the perception skill. Could be possible to spot stealthy individuals if you have high enough perception, or perhaps with the awareness attribute.