If you mean to have a Textbox or other control on a Form become "sticky",
keeping the value most recently entered as the default, you can use a little
VBA code in the AfterUpdate event of the control. Let's say you have a form
with a textbox named MyText. The code would be
Private Sub MyText_AfterUpdate()
Me!MyText.DefaultValue = """" & Me!MyText & """"
End Sub
That's four doublequotes before and after; the Default Value property of a
control (whatever the datatype of the underlying field) must be a text string,
and the quotes do this.
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