Move a control to a different sheet?

In order to make things a little easier for the sales guys, I'd like to move the Customer Group dropbox from the Billing>Detail sheet under Customer Maintenance to the main Customer>Detail sheet. Unfortunately, it's a custom control (the "type" in customization is "Epicor.Mfg.UI.Controls.Combos.CustGrupCombo") and I can't seem to recreate that on a different sheet.

Any pointers?

Thanks,

Ernie Lowell
Diba Industries