I returned after some time to play this amazing modification.
I tried to play a custom battle (by using MP shortcut) and selected Koinon Hellenon. But, as I was picking my army, I realized there is no unit of Peltastae for KH.
I am not sure how that "switching" feature of export_descr_units works. But there are two files in EB/data folder which seem to be relevant. Its:
And after I look into MP version, I realised there is no ownership of Greek_cities under "greek skirmisher peltastai" entry.
So, I added it, but to no effect. I tried several solution as it seems to me that those files are just "switched", but to no effect so far :(
I even tried to modify "export_descr_unit.txt" directly, but it do not work neither.
So, any suggestion how to enable that unit for Greeks in custom battles?