The pop-up menus for subpanels include a command for making the control the current Main Panel control.
The pop-up menu for subpanel controls includes the following items:
Promote to Front Panel - Duplicates the control in the Main Panel, replacing the current Main Panel control
Move Up - Interchanges the selected icon with the icon immediately above it
Move Down - Interchanges the selected icon with the icon immediately below it
Help - Displays On Item help for the control