How to reconfigure tinymce?

good day.

i have situation here were im working.

i want to reconfigure tinymce wysiwyg editor and enable “nonbreaking_force_tab” functionality of it.
is anybody here experience or idea with this situation?

i already put code in js function but not working. i also test some of event like onload
and onscriptinit…

i have a working simple html with tinymce but when i put codes in scirptcase it will no effect.