Adding more promoted properties after a first one in BizTalk

I've got a BizTalk solution where I added a schema, and promoted a field
- this added the default PropertySchema.xsd with the element in

A bit later, added another schema, but when I try and promote a couple of fields, but when I select Show Promotions, I end up mapping the new field to one of the existing fields in the PropertySchema

From stackoverflow

• My bad ... I should have used the Quick Promote

• You can manually add items to the property schema as you would with correlation and then associate the promoted property.

  SteveC : Thanks for the pointer