Help With DG VN

[snake966]

OK I think I asked this in the wrong forum. I need to make an OOB change in DG VN modern unis. I want the Islamic Army to have horses units thru the end of the time frame (1999) like the Muslem units do. What editor do I use to unlock the OOB and where do i find it. The unit creator utility only allows units from WF EF and RS. Sorry just one small item but its really got me stumped.
BTW I am a real caveman on the PC so explain in simple terms:)