drawing (person authorized to draw)

Hi,

I would like to set a default authorized to draw in my contract loan.

In the SAP Library said:

"In Customizing you can specify that only a partner who has been defined in the

contract data as a person authorized to draw can be copied using this function.

This means persons authorized to draw cannot be entered manually"

Somebody knows where I could set the person authorized to draw in the SPRO?

Thanks,

Adriana Rivera