Trying to chart a rhythm part of a song in eof & am stuck on the barre chords, need help plz.

You do it like any other chords you do just add all the note on each strings and define the correct fret for each.

The quickest way I have found to do chords is right click to get a gem (coloured note thing) where you want it, then press F.  This will bring up the chord definition box and you can fill in the numbers you want (and some other things).

 

Remember copy and paste will save you heaps of time once you get the first chord defined :D