[Edi]

The commands you need are:

#land
#owner
#commander
#units

#land command kills everything in the target province, and if you want to assign the province to some nation, you need to use this. If you use the #setland command, there will be an indie force in the province that will attack immediately when you host your first turn. All following commands will affect this province, until the next #setland or #land command

#owner X will assign the ownership of the province to nation X, e.g. #owner 0 gives it to Abysia.

The #commander places a commander of the specified type in the province. Note that there might be more than one commander type of the same name (e.g. the three different mounted commanders, 44, 45 and 46), and in that case it will use one of those types and it will always be the same type if you don't use the unit ID# (e.g. #commander 44). If you don't use unit ID numbers, you need to put the type in quotation marks (e.g. #commander "Mounted Commander")

The #units works exactly as the #commander command above, in all respects, except that it must be preceded by a #commander command first. For example, if you assigned 20 Hoplites to your mounted commander, it would be #units 20 "Hoplite".

That's about the basics of map editing, but it was all in the mapedit.pdf, so obviously you did not read it carefully enough or just weren't paying attention.

Edi