adbLink v4.3


Senior Member
Dec 10, 2010
OK, answering myself but for others benefit, maybe ;o)

originally I used:
sm partition disk:8,0 private
to create the USB partition which is formatting your entire USB as internal storage hence, no show in Kodi data move menu.

So, I tried:
sm partition disk:8,0 mixed 50
to create a 50/50 split of internal and external storage and SUCCESS, now Kodi data move menu sees storage
Great app! Moved Kodi data to Firestick 4K OTG USB as getting storage warnings. No more warnings and Kodi slowed only very marginally. Couldn't have been easier in the end.