Adds page break to classic editor and "text editor"
Classic Editor http://scribu.net/wordpress/right-way-to-add-custom-quicktags.html
And Text Editor: https://shellcreeper.com/?p=889
Adds page break to classic editor and "text editor"
Classic Editor http://scribu.net/wordpress/right-way-to-add-custom-quicktags.html
And Text Editor: https://shellcreeper.com/?p=889