How to modify status line and change room properties in TADS 2?

I was wondering how one could modify the status line, ie making a time clock using turns for minutes and score for hours, displaying it as a clock: Time: 0:00, or even displaying the status line like Infocom (Location Score: 0 Moves: 0)? Also is it possible to change room properties with function controls, ie with daemon timers or with another object?