Default Diasabling Hard Key Home Button

I have installed the CleanROM version 2 and included the Enable On-Screen Softkeys option. I would like to disable at minimum the hard key home button without disabling the softkey home button. The hard key home button is especially annoying in s-note or OneNote as I inadvertently activated it by my palm. I've tried to find an Xposed module or a key number/file to mod but haven't had much luck with what I have found in the forums. Can anyone give me a little help in the right direction?