Query: adding leaders to OOB

[neonlicht]

Hi There!

Been experimenting in the Seven Years War editor, trying to make custom scenarios to play against the AI. Got a question:

Is it possible to edit the OOB files to include extra leaders? That is, to add a second leader to a unit, beneath the first? For example:

1
Russia A Russian Army
Begin
L 4 4 90 32 FM Apraksin


Would become:

1
Russia A Russian Army
Begin
L 4 4 90 32 FM Apraksin
L 3 3 84 32 GM Von Weywarn

Thing is, when I try this, the scenario crashes in the editor with an error message. Must be doing something wrong. And so, is there a correct way to add extra leaders? Or is it not possible to add extra leaders?

Thanks in advance for help. :-)