I spoke too soon. Me Allow Edits works great but it not only locks the Customer Combo (LuClient)it locks all the data on the form. Short of changing my whole database which has been running Registration for the past three years -  I tried adding a check box and using the on click Event(in current) that would allow edits but didn't work - I see in the next chapter you are unlocking fields on the form so logically speaking I should be able to lock only the combo box.  

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Reply from Richard Rost:

Yes... you can lock individual fields. You don't have to lock down the entire form.