Regarding Dynamics 365 Project Operations, currently, there is no default feature to automatically relate roles from selected bookable resources when creating project records.

When creating Project records, according to selected bookable resource records on "Project manager" fields on the form, team member is added to the created Project record.

The role of this added team member would be always "Project Manager" instead of related roles from selected bookable resources.

However, some users would like to set related roles when creating project records.

It would be great if related roles with selected bookable resources could be set by default features including Power Automate.