You will find the list of standard contract group numbers in the Settings of PSOhub under Project settings. They are the following: 10,20,30,40,50,60,70,80,90 and 100.

If you need additional contract groups numbers, simply click on Add number and a pop up window will appear. From here you can create your additional group number(s).

Important: Do NOT overwrite the existing numbers, only create the new ones.

Once you are done, click Save. Your new number will now appear in the list and you will also see it in the drop-down menu of contract groups.