How can put air things

Im working in wads but I need know the form to put air things things for my next maps

tranks in advanced

English is obviously not your first language, but that's bad enough that I can't answer the question. What "aerial things"? That makes no sense at all.

FOF's?

errr, sorry, I said air things

Bitsets.

"aerial" as in "in the air". What he means is that he wants to know how to place objects in the air. Well, to do this, you normally have to mess with the flag values(Height from sector floor multiplied by 16, plus the original flags value). Of course, with the new SRB2 Doombuilder modification, you can just put in the hieght you want it to be at now.

Here is the doombuilder alteration

EDIT: I started posting this after mystic posted. Just so you know.