Using Typewriter tool for auto text insertion

Dear Learned Ones,
I use the Typewriter tool to fill scanned paper documents. Each paper document I use is from a different organization, so each document layout is different. The info I fill in is all the same. Is there a plug-in (or how do I create one) that will allow me to click on the document with the Typewriter tool, then say, right-click (or select from a menu)a list of pre-determined text strings(name, address, city, state, etc) that will automatically insert into the selected area?