This drop down combo is visible when the "Method" is (Part Only)
and (Implode). It is the linking of a parent to a component and
refers to the number of the parent to be linked to the component in the
Reference Component field.
It is populated with all parent Parts, Descriptions, Source, Fixed Account
And Serial/Lot Control from the Part Master table. The number of characters to be entered before the list is shown is
governed by the value of "populate length" (mandatory).