How to customize tracker.AcceptAll() to accept all the changes from multiple TinyMCE editors

I am working on a report writing tool, which have multiple sections and sub-sections under each and every leaf node (sub-section/main-section) is an individual TinyMCE editor. When I click on Accept all changes, it should accept all changes from the sections and its sub-sections.

Please help if you have any solution to fix this or customize this.