Add dynamic report in WYSIWYG editor

Hi
I want to create a assessment report which a user creates and submit it (to DB, export to PDF, etc.) using WYSIWYG editor. I have templates/formats of the report in the form of several statements and want to create links/buttons to click which adds the text/lines in the editor to prepare the report.

Tried searching in the community and in docs but could not find a proper answer. Please advise.