Set cell value based on another cell

I am trying to create a customization on the MES work queue screen for the active work grid.
Wat I want to happen is when the user checks the complete flag the request move flag will toggle on and off with it. Please help, I tried using various method like Before and after row update, and before and after cell update and could not get this to work… Any examples are appreciated. Thanks in advance.

use and EpiViewNotification on Initialize . Set the request move field = to the complete flag

Than you, that worked