ProtoShare for Confluence does not have the functionality of Templates and Masters as ProtoShare SaaS does. This is due to the nature of the single design Editor that is used and there is no Library to store Templates/Masters. While it may be a feature that is added in the future, it is not currently viable with how Confluence currently functions.
If you want to make a library that allows you to reuse work, one possible workflow is to create a special design on a test page/project and store your widgets and stencils in that. You can then copy and paste content between designs.
Do note that while you can copy and paste between a ProtoShare SaaS and ProtoShare Confluence design, Navigation and RIA components are not available in Confluence so they will not be added.
If you have any additional questions, please let us know.