Because I'm trying it and the ENTER key does not work in the screen after the WHEN turns it off.

>How do you know that?
>
>>That almost works. For some reason the ON KEY LABEL ENTER in the Valid does not turn it back on.
>>
>>>I would try ON KEY LABEL
>>>

>>>* WHEN
>>>* Disable ENTER (or do something else)
>>>ON KEY LABEL ENTER *
>>>...
>>>* VALID
>>>* Enable ENTER
>>>ON KEY LABEL ENTER
>>>