Is there way to get Karl Franz and other heroes into Custom Battle?

[Talic]

As the title says, is there way to get Karl Franz and other heroes into Custom Battle?

[Jivaro]

Normaly you go to the export_descr_units and search for the no_custom in the general_unit, but to my knowledge there isn't a unique unit assigned, so we just have a General model, you have to create your custom unit for Karl Franz.