I was dealing with a door moments ago when I realized that, while our current plugin is absolutely wonderful and better than Lockette, maybe something can be used along the lines of Lockette for setting timers. With Lockette doors I'd place a sign saying things like this:
[Private]
SomeLatinRoot
[timer:3]
This would hold the door open for 4 seconds as long as the sign is above the door. It also works if you put other usernames under the timer.
Just a suggestion, a timer for the multiple doors that we use so that people don't leave House doors open!