On the below form you can see that i append a Tab(Package Info) into the "Packing Slip Journal" form.
Why i come out this idea to do this test is because the packing slip journal doesn't have package information by default, by doing this the client can input the package information manually, and get it printed out on the packing slip journal report eventually.
I created a table with above six fields. on the form i configure the data source is editable, and the Grid is editable as well, but the data record is grayed out if i click the New button. not sure why ?
Note,
The first three columns data are took from the join table "CustPackingSlipJour".