Number range for process order - Bulk and Filling.

I was trying to configure the Process order number range based on order type. In the IDES/ development system, some of the number ranges are pre-configured and already in use. Even the '+' green sign at the top is missing.

I tried with 'CORN' and then selected the order type and the Number Range General at the very bottom.

Help is appreciated and will be rewarded.

For example: The FG process order to have 1xxxxxxxxx, bulk: 2xxxxxxxxx.

Thnx!

Abhi.