You can use the consol command to add the desired reformator trait.

Check the export_descr_character_traits file in EB/Data, search for 'reformator' (I copy pasted what's in the file)

Trait: Reformator - "Reformer" (as in Marius)

Trait Reformator
Characters family

Level Potential_Reformator
Description Potential_Reformator_desc
EffectsDescription Potential_Reformator_effects_desc
GainMessage Potential_Reformator_gain_desc
Threshold 1

Level Reformator
Description Reformator_desc
EffectsDescription Reformator_effects_desc
GainMessage Reformator_gain_desc
Threshold 2
give_trait "character_name""trait'level --> "character_name"'Reformator"2

Hopefully that'll work, your biggest problem will be giving the right trait to the right FM!