Edit TypoScript file content in t3editor
When putting TypoScript in files you cannot edit their content within the t3editor (using syntax highlighting,...)
This feature loads the content of the referenced (via <INCLUDE_TYPOSCRIPT ...>) TypoScript files into the editor wrapping them into "### <INCLUDE_TYPOSCRIPT ...> BEGIN" and "### <INCLUDE_TYPOSCRIPT ...> END". After saving the template the content between those commented lines will be written back to the file.
Read some more here (that was my first approach putting this feature into an own extension "tsf")
Additionally now the tstemplate_info module comes with an extra checkbox that allows you to enable/disable this feature.
(issue imported from #M16183)