trouble with shifting between editor layouts

Hi!
I was trying to keep the information added to build a page when shifting from advanced to default layout editor and I’ve read on your forum that I could add this tag to the child theme function so that i could see the shortcodes when passing from one to the other editor
//set builder mode to debug
add_action(‘avia_builder_mode’, “builder_set_debug”);
function builder_set_debug()
{
return “debug”;
}

however this hasn’t helped since after the shift i still cannot see the shortcodes plus a code keeps showing up right under the wordpress saying:
//set builder mode to debug add_action(‘avia_builder_mode’, “builder_set_debug”); function builder_set_debug() { return “debug”; }
is there any way you can help me to achieve my objective and stop the tag from showing up?
thanks