We are using the modal frame work and cck on some of our content types, lets say one is a product and that product has various cck fields that someone input some data, but some fields might be empty because that user who created the node didnt have all the details, we want others in the system to be able to add any missing data to these nodes but not be able to edit the whole node , is their a way with permissions or something we can do that doesnt give everyone full edit access to the nodes?