So what I mean by this is instead of a JVC door opening at speed x, you can change the speed to whatever. This could be used for haunted houses, like old creaking doors, this could be used for space doors where they need to open/close quickly like in startrek, this could be used for hatches where a wheel is turned at a certain speed and the door needs to go at the same speed.
The event in combo with the other door events would be something like
Onactivate--self--contentstart--unrestricted
Oncontentstart--self--setcontentspeed--1/2speed
And the if you want it to go two different speeds at different times you could add
2000-Oncontentstart--self--setcontentspeed-1/4speed
