Remove all Kern On Data

[skyrailhighline]

I'm inheriting a file with existing Kern On data (groups and models) and I need to start again, how can I remove all the data?

[skyrailhighline]

I found this thread, viewtopic.php?t=8363 but when I delete all kerning pairs in the kerning window when Kern On is off, and start Kern On again, the models are still there. I have also run Mekkablue's Remove All User data script. I had to close the file and open it again for Kern On to properly start again.

[SCarewe]

Remove the userData key "KernOnModels" for the master. Also, remove "KernOnSpecialSpacing" for all glyphs (this sets the groups). Then restart Kern On.

Other relevant keys:
Master-level: KernOnIndependentPairs, KernOnUserSetAutopairs, KernOnIsInterpolated, KernOnAutokernedFrom
Glyph-level: KernOnName