Scrollable part of a plan

[matas_ka]

There should be a part on the left side of the plan which is scrollable (list of rooms). When i select a room the right side should show information about the room and controls (temperature settings, etc.). I need the list to be scrollable, because there is a lot of rooms (28 to be exact) and I need to fit them in an intuitive way to access them. I will attach a sketch.