Yes, check the "docs" subdirectory of your Dom3 installation for modding and mapping PDFs. Edi has created an update for modding (Age of Unreason, if I recall correctly) that you can find on the forums too. Edi's version has a few more commands documented, and you can also check the progress page (
http://ulm.illwinter.com/dom3/dom3progress.html) for stuff that isn't documented anywhere yet because it's so new. Usually it's pretty easy to guess what the new commands do.
Example mod command: make Bashanites have str 30
#selectmonster 2010
#str 30
#end
(I happen to know what the Bashanite unit number is because I frequently add them as test opponents in battles using Shift + 'U', but if you need to learn a unit's number you can check Edi's database or else select the unit and click Ctrl + 'I'. Or maybe it's Shift + 'I', I can't remember.)
-Max