Right now the key attributes that are used to control the migrations use as key attributes the primary keys of the own entity, of secondary entities and entities with a many-to-many relationship in that order of priority.

There are some scenarios where none of these could be used but it would be possible to use the values of key attributes from a primary entity in a one-to-many relationship.

The goal is to improve MoDEvo to include this option when none of the existing ones can be applied.