Templates should be accessible across planbooks and from other years

Right now, I have three planbooks, however some of the lessons apply to all three. It would be great if I could use the templates I've save from one planbook and apply them as I see fit in another planbook.

As it currently stands, I have to retype any lessons that I want to be in multiple planbooks. I cannot just save the lesson as a template and bring it up in another planbook.