How to create a New system function
How can I setup an function which I can view and use when I click €śinsert
function€ť or as a system?
e.g.
Public Function NewNumber(IDRange As Range)
NewNumber = IDRange.Cells(1, 1).Value + 1
End Function
I want the function NewNumber can be as part the list functions when click
€śinsert function€ť (€śfx€ť)
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