well you dont have to loop it for 30... i dont... i dont know what it does either... if i may suggest either do a black transparent or an overlay to start:
start out making stills of something... anything... just draw it out in paint or something like that. then dump black around it. save as a tif file. go into plugger and put in the stuff on the first screen... 1 layer, 1 variation. then define layers. select the background image. forget the attribute stuff. forget the effect script select black transparent. then just select the other stuff and click assemble. and your done
for a overlay... say you wanted to make a full screen effect: just do the same thing but no black and then where you clicked "black transparent" last time click "overlay ink"
that should make it a little easier to understand. then when you figure that out then just mess around with it and see what other effects you can make!