Access rights for customised invoice templates

Is there a way to give a user with Standard limited customers and suppliers access the rights to create customised invoice templates? And if not, why not? Generally a user that is logged in with the specific role of working with invoices would be involved in raising invoices, and as part of that may need to create templates.

Giving full access isn't an option as this is for a person doing a specific role in the company and the client would not want full access to be given.