How to activate https for NextPVR Plugin in Kodi

[Beksultan]

For access to my nextpvr I need to use https protocol. The NextPVR plugin uses http and unfortunately the setting to change this is not exposed. I see the file /sdcard/Android/data/org.xbmc.kodi/files/.kodi/userdata/addon_data/pvr.nextpvr/instance-settings-1.xml and its content including the hostprotocol which I'd need to change. I tried editing using adb shell - it was not possible to save the file after editing. I tried adb pull and push - push was not allowed. Android does not allow modification of files belonging to an application from outside an application. There used to be a file editor as Kodi plugin which could edit this file, but it seems to be discontinued.

How is it possible to use the nextpvr plugin in Kodi on Android and activate https protocol for its access to the server?