Passing static values to Search

By using the Pre Load Search option I am trying to pass the static value for PartNum here Like this
"PartNum= ‘CO’ "
But This is working only for Base, not for the layer search. What I am missing here. Can anyone help with this issue?

This is the issue i am facing.
Quick Search issue in Epicor Kinetic - Kinetic 202X - Epicor User Help Forum (epiusers.help)