TT
It's fiddly but you could have additional snipit drop down buttons acting as a section.
There are sectioning tools for dropdowns see Option Groups in the
selectWidget
Also in your example, are these simple strings you want to insert, rather wrapping existing texts etc..?
If so perhaps just a copy to clipboard would be just as easy?
Attached is my system tag for the sideBar More menu which allows you to copy a system tag to the clipboard. Perhaps you could modify this to copy your snipits to clipboard?
Regards
Tony