Blocking the creation of Definition Copies for certain Object Types

Hi everyone, we are using libraries to provide process modelers with a pre-defined set of applications and business roles. We experience, that modelers create definition copies of process models (which is fine) but by doing so they also create definition copies of the included applications and roles. The latter is not good, as we have a Sisyphos task to manually merge all the definition copies (of apps and roles) with the dedicated item of the respective library.

Question: Is it possible to configure the application system type and role so that definition copies are impossible???

If not, any workaround recommended?

Thanks in advance

Peter