FoF help

Does anyone know about stacking FOFs? Im making a level that takes place in a set track and this is really fundamental to it.

Same as making FOFs but you can't do it with the Wizard.
1:Make a FOF.
2:Make another with the same tag as the 1st one but with a different height.
Example:
I make a FOF with a tag of 1, The bottom height 100 and the top height 150 and after i make a FOF with a tag of 1, The bottom height 200 and the top height 250.
Will lead to:
A FOFOF/Stacked FOF.
Same goes for a FOW(Floor Over Water),FOS(Floor Over Slime) and for a FOL(Floor Over Lava)

Have two control sectors. Give them the same tag, but different heights, BAM, stacked FOFs.

EDIT: Crap SU beat me to it.

Thanks.

To create an FOF on top of another, you have to make it manually. To do this, create the control sector for the second FOF. Then, adjust the floor and ceiling heights for the FOF. Next, give one of the sides a linedef type 25, and give it the same tag as the FOF that was already there.

EDIT:I'm too slow.

Be careful of how many stacked FOFs you use, the framerate in gameplay may slow down.

Yes, I've had this problem many time myself. It's a pain trying to keep huge levels form lagging when you have like 50 FOFs in the same place! (... Shut up, FOFs are useful!)