Most folks who are drawing up plans have common information they want to include in their drawings. Items such as title blocks, legends, customer information, etc.
You can create a template drawing that will be the basis for all of your future drawings. Once created, it can be duplicated and these copies will have all the elements you need to get started.
If you are working with an existing PDF plan, you can also bring in common Template elements by saving them as a saved shape. Once they are adding to the plan, those shapes can be edited to match the current plans needs.