Hellenistic Cataphracts in non-late Period Custom battles?

[Big_guy_4_you]

I'm making a small mod, probably for my own personal enjoyment only, that tightens up the faction rosters in Custom battles (not changing campaign, only custom battles) using the Middle Period, addresses a weird stat issue with the Kardakes being weaker then the levy spear (Nezgadar) they replace, and eventually remove terrain bonuses and malus effects so that if I played customs with friends, we wouldn't be put at a disadvantage just because of a map choice. Anyway, I want to make Hellenistic Cataphracts available to Baktria in the "Middle Period" in Custom Battles, how would I go about doing this?

[Big_guy_4_you]

Never mind I think I figured it out.