Office push out name and initials

[GWI]

Hi

I'm using the a script to change every users name and initials to -- . This works great for Word but doesn't seem to change Excel or Power Point unless you have the box 'Always use this name regardless of how I'm signed in to Office' checked in Word preferences. I can't seem to find the plist value to change this via script. Anyone know where it needs to go?

Thanks