Sorry, Larry, but you need to be a little more specific than that.

If this is about tab order, then you go to form design and click "Tab Order" on the ribbon to set it.  Note that different sections of a form (header, detail, footer) have their own tab orders.

Yes Sir, I have used the tab order feature.  Can I use VBA to do the same thing with the Enter Key?

The Enter key is typically not relied on to navigate a form, in Access or elsewhere, because the Enter key is often used for submitting data or activating buttons or other controls.  Tab is for navigating.  You need to get used to using Tab to navigate forms, and train your users to do the same if they are under your charge.  If you must have the Enter key to do that, you could program it to do so, but not without considerable effort; and you would be violating a de facto practice.  In any application or website, pressing Enter almost always executes something.  When you are signing in on a website such as this one, pressing Enter almost always means clicking on the Sign In button.

Yeah, you can do it with a KeyDown or KeyPress event... but like Kevin said, why would you want to? I show a similar technique here: Move Up Down Using Keyboard.

If your users are that used to Excel, I could see some reasoning behind it, but I say teach them the Access way. :)