Stay open, don't think so
But it's easy to make it open
[onkeyactivate] [door] [contentstart]
That should open it, and add the rest of the door script to that as well.
it is possible, when content starts, fire relay to where the door opens to, on that brick have
onrelay>self>setraycasting[1]
onkeyhit>self>firerelay(to the door)
onkeyhit>self>dissapear[0]