It is populated whenever the "Component to be Linked",
"Component to be Replaced" or "Reference Parent" combo
box, and the left and right "Method" or "View Options" are
changed.
It is populated with selected component to be linked from
the Product Structure table.
If View Parts is set to Show Active, only parts, where the
engineering change date is less than the current date and
the Link Status Code is equal to "A", or
The engineering change date is greater than the current
date and the Link Status Code is equal to "I", are displayed.