Default Customizing Home Screen when Creating Rom

I'm building a rom off of the stock rooted rom for the Nexus 7 2013 edition. I am able to do everything I would like but am having a hard time getting the rom to place icons on the home screen.

I have tried editing the updater-script and adding various files to the data install..

Can anyone shed some light on where to look next?

I greatly appreciate it.

Thank you!