This seems to work but if I edit the child (line item) it forces the base
record into edit mode and I have to post it again.

Do you mean that there needs to be a transaction for the base
TIB_Query record and all of related TIB_Querys, and one for the
line item TIB_Query and its related TIB_Querys?

(Request, Vendor, Account, Special - TIB_Trans)
(Line Item, Account, Special - TIB_Trans)

I go through the steps of: Add a new base record with its vendor,
account, etc. Save it. Insert new line item and copy related fields
from the base request (vendor, dates, etc) and then save it. It
then sums the line item "costs" and puts them in a base request
"Total" field. It goes through this last step once for each line item
add/post.

Thanks, Steve Fields