Disable Google Chrome Browser Syncing (for "Extensions" only)

I am trying to create a fixlet that only disables the syncing of Extensions in the Google Chrome browser. So far, I have figured out a way to to install a registry key that disables ALL Google Chrome browser syncing, but it needs to be more granular.

Using the BigFix wizard, I was able to create a simple fixlet (below) that disables the syncing of apps, bookmarks, extensions, history, settings, themes, open tabs, passwords, etc. Normally, these can be individually be controlled by on/off toggle switches by the user. With the browser syncing fully-disabled, the user is unable to see those options, and the message displays “Sync is disabled by your administrator” when navigating to the Google Chrome browser settings.

action uses wow64 redirection false

delete __createfile
delete wizardedit.reg

createfile until @end_create_reg_file
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\Software\Policies\Google\Chrome\]
"SyncDisabled"=dword:00000001
@end_create_reg_file

move __createfile wizardedit.reg
waithidden regedit /s "wizardedit.reg"

After scouring the Google Chrome forums, I don’t even think it’s possible to go this deep. Anyone ever work with this?