Enabling permissions on Kolibri side loaded on Amazon Fire Tablet

Hello,

Please is there any version of the Kolibri apk on the Google Play Store that one can download to an Amazon Tablet (HD10 generation 13), that will enable the ADD LOCATION button on the device settings page of the Kolibri app? I have sideloaded the Kolibri app using a sideloaded Google Play store to an Amazon Fire HD10 tablet (13 Generation). I have downloaded the educational resource Khan Academy and the kolibri app to the Amazon tablet’s internal storage. I want to set up the kolibri app to access and download subsequent educational resources to an SD card that is attached to the Amazon tablet as portable storage. I want Kolibri to access and download files from the SD card. Under device settings of the downloaded kolibri app on the Amazon fire tablet, there is a section labelled ‘Primary Storage location’ which lists a path for newly downloaded resources location. It has a greyed out button labelled ‘ADD LOCATION’. Is it possible to enable this feature so that I can point subsequent downloads to the SD card?