How to create unit from a different faction?

Hello there,

I was just messing around with create_unit cheat by creating random armies with different era units but wanted to try unique units from other factions togethers.

Unfortunately no luck, I assume because each unique unit belongs to ownership of that faction.

I tried for example: A Jerusalem unit to Spain (Leon and Castille) unit create_unit Leon "Templar Guard" 1 9 3 3

it works but the unit texture is not recognized on the campaign map and battle map.

So is there a way in the .txt files to be able to change ownership of units to other factions?

Please and Thank you for the help!