Can anyone explain to me what this panel insert does on the D workbook, It sounds like what i need to be using instead of the glass door option. I'm using the glass door option as it works, but the shop staff dont seem to the concept behind it, and i'm bored of having to explain it multiple times for new and old staff.. Ive tried to set it up in a few different ways and it just seems to not do or function in any way. 

Essentially we make our MDF end panels 2 pieces, the shaker cut out of 18mm, and a 9mm insert to make up the shaker, instead of pocketing. Glass door achieves this perfectly except the naming etc.

I'm reluctant to change names because of the last issue i had with drawing tokens changing the name causing errors. Just trying to optimise everything and make it fool proof essentially.