Delete Object as an action option

More a feature request than a support issue.

I do not find any option in the Salesforce connector to delete an object. Where this is important is in updating a parent-child object such as an invoice with invoice line items. When a human user (in quickbooks in our case) edits an order/invoice. While completing this edit they remove an item line. I need the ability to detect that a line has been removed in and then to delete the extra line from the copy of that record in salesforce.

[If not able to detect deletion, I would then delete all lines and insert new ones - a hack but ok since the number of lines on a single order/invoice is manageable.]