How to make a rotating stop sector door:

First draw a sector with a long thin child sector within it.Make sure it is a valid player space by pressing alt+s,then give it a lowtag of 30.Place 2 sector effectors,an activator and a music sound effects sprite,give the sector effectors a unique hightag, make the activators lowtag equal to the sector effectors hightag.Give one of the sector effectors a lowtag of 1
leave the other one alone.Place the sector effector with the lowtag of 1 in the center of the sector,place the other sector effector on either end of the sector then rotate it in the opposite direction of the other sector effector (or it will become a swinging door).Raise the child sector all the way up to the ceiling (do not lower the ceiling to the floor or the texture will slide).Now make a switch and give it a lowtag equal to the activators or you can give the wall that same lowtag providing you use one of the door tile textures (otherwise it will not function).Give the music sound effects sprite a lowtag of 170,Your done.