ok this is very simple:
1. in geo-mod click Characters tab in the upper right panel
Attachment 72911
2. now click new in the upper right
Attachment 72912
3. now choose from the panel screen given in the middle male or female and open the drop down dialoque
and choose a faction (I chose Kaiserlichesdeutschland (in most games the HRE) then click a last and first name and finally click ok
Attachment 72913
4. now that panel will close and if you look at the main characters panel you see the faction of choice has reverted back to default (England in my case Le Comte`Bordeau`)change this back to faction of choice
Attachment 72914
5. then click the type drop down dialoque and choose type
Attachment 72915
(if you are adding a general or captain they must have a least one army unit, and that means also all armies must have a general or captain, like this:
Attachment 72922
Important when adding units they must be in the exact same format as in vanilla "Spear Militia" (puntuaction is everything!)
open and create unit and click add
Attachment 72917
now go back to various
Attachment 72918
7. click move an choose a location on the campaign map
Attachment 72919
8. final step click validate!
Attachment 72920
good luck!