Information to add a provision to Panelboard is available in this article.

1. After launching the panelboard, following is available to the user.

2.  In the panelboard configuration under "Section/Main" add the branch device. Before adding the branch breaker, select the following for the to change to provision. Note: P1 panelboard have provisions by default. 

3. Now the provision is added for the selected branch breaker.