Hi, I have look over the subject of forum and i don't find an answer an my interrogation. In fact, i want to utilize WPI with command line but with the categories witch in have define in my configuration. For example, i have define an classroom (GE202) and is it possible to use this categirie in an command line as WPI.exe options=useroptions_mritter.js config=config_mritter.js check=Work timer=30 selection=GE202. i thank you for your help