Way back, I remember people asking about how to 'split-view' a source
member in
WDSC like CODE/400. I came across the following plug-in that may help out.
Check it out. Only 'issue' that I have found is that it does not use a
mono-spaced font. I have emailed them asking to support a mono-spaced font.
http://www.savtol.com/eclipse/index.htm