with ezscript, you have to start it, set the config parameters, then close it, re-start it, choose your drawings, chose your script, save it and then run it.
It's a bit fiddly at first, but as it can use do all the drawings in one AutoCAD session it's a lot faster than AutoCADs own scriptpro, which loads autocad for each drawing.
I think there is a help file on the EZscript website for setting it up.