Hi Ibrahim
There are two ways
1. As explained above - User status profile
2. In the order type, you will find button "Field Layout". Here you can make CC or GL for settlement mandatory
Wit this, user will be forced to enter a cc or GL as settlement receiver in the "period end" tab. This gets automatically created as settlement rule. But this option can only help when you wanna settle to CC or GL and that too single settlement receiver
Ajay M