Does that mean that you have this relationship?
MasterMenu::constOne = ShippingOrders::Status
where incomplete shipping orders have a value of 1 in the status field?
IsEmpty ( ShippingOrders::Status )
can be your conditional format expression and you can specify a font size of 120+ points (for font size 12 text in a single row) to make the text invisible when the above expression is True.
In fileMaker 13, you can also use the "Hide Object When" setting to make a layout object appear and disappear.
Thanks! Got it working.