Is there is an API to change the Planning Resource Breakdown Structure at the Project level

Summary:

We updated and made changes to our Planning Resource Breakdown Structure Resource Format Planning Resources in the Manage Planning and Billing Resource Breakdown Structures.

We also received a warning that the 'Any changes made to the planning resource breakdown structure won't apply to the projects that currently use it and that we must make the same changes to the planning resource breakdown structure at the project lvel to use the new or updated resources in the projects.

Is there a way to mass update in the Project Level the changes made to the Planning Resource Breakdown Structure Resource Format Planning Resources? It will be very time consuming for us to manually make the changes at the project level for us.