Import predefined templates in the sandbox

The question summary sums it up pretty well - I use the sandbox for educational purposes. In some videos I have seen they use a predefined template which is an example application with defined structure, modules, artifacts, etc. When I try to deploy predefined template I receive the following error

"Error deploying predefined process templates to the repository.hide details
User "rextor1" does not have the required permission to perform the following operation: create a process template in the repository. The "JazzProjectAdmins" repository permission is required to perform this operation."

I have no way to change the permissions my account has. Is there any way to import an example app to the sandbox?