Hello together,
I have installed the auto-scheduler for the satellite PEGASUS on my Station in Austria.
I documented the process, since I ran into some errors during installation. Maybe the file attached will help you for setting up the auto-scheduler. You only need to adapt it to the NORAD-ID and transmitter you want to observer of the ISS. 
Note: The paths in the document are for my local Setup on a RPi, they may differ for you. Moreover, I have generated the content of the priorities_XXXX.txt file using a gen-priorities.py script. The standard procedure, which is discribed in the auto-scheduler documentation didn’t work out for me. Also note, that the auto-scheduler is not part of any GUI, its a routine which runs at defined times using a cronjob. This routine schedules the specified passes for your Station in the SatNOGS Network.
Cheers,
Alex, oe3ala
Download:
3_Install satnogs-auto-scheduler for PEGASUS.pdf (118.5 KB)