One way I have done this is to add a text box to the header, with its border
and backstyle transparent and its size .01 x .01. Tuck it away in the
corner of the form. In its Enter Event:
Me.DetailBox1.SetFocus
Set the tab order in the header so this text box is last. When you tab out
of the second to last text box in the header you will arrive at this tiny
text box, where the Enter event code will send you immediately to the first
text box in the Detail section (or wherever you want to go next).