It is only working from openpli-8.0 upwards, because it needs the program p7zip, and this isn't available before openpli-8.0 (it works also in openatv and openatv-7.x (python 3)). I have written a script (in english language) with that you can install e2iplayer from git, it is for use with hotkey designated, and you can use this script also for updating e2iplayer.