Change default stereotype: Upon adding a Column to a DB-Table, I would like the col stereotype to be my custom stereotpye

Question

For our project, wo would like to document certain information with the model in Enterprise Architect, in order to not have multiple sites where stuff get's documented.

A consequence is, that the default model of EAUML::table and EAUML::column is insufficient.

Therefore I started to extend the classes to add our custom properties as shown below.

Now (after exporting and importing a MDG Profile) I am able to change our defined tables to our new stereotype.

Question here is: Is there a way to change the default column stereotype to "CUSTOM Col" for the "CUSTOM Table" instances? I don't seem to find a way. I imagine with a script in the right place or a "substitution" of the right kind. But I am an EA-Newby and have no clue how to solve this.

Thanks for any pointers. Best