There are two ways a motorized system can work.
1. The basic setup, using USALS, you go into the menu, Setup, Tuner Settings, select Configuration Mode: simple, Mode: Positioner, the enter your Latitude, and Longitude.
2. Diseqc 1.2, go into the menu, setup, configuration mode: Advanced, Select your satellite, e.g. Astra 1, 19.2E, set LNB to 1, select Diseqc 1.2, then you can either use USALS, or select no, set the stored position to 1.
Exit that menu then go to Positioner Setup, scroll to an option to move the dish, then locate the satellite and store it at the same position, 1. You have to set up each satellite, that you want the motor to go to, in the same way, e.g. Hotbird, 13E, position 2, then find the satellite and store it, on that same position, 2.