Since you didn't state if it is an Embedded Macro or VBA the image below shows both.
Right click the button and select Build Event (or go to the Events tab in the property sheet and click the builder button (...)

If you used the wizard for your button the Macro builder will appear. Add the arrowed command and add the name of the field you want to go to when the button is clicked.

If you used VBA for your button add the arrowed line of code and add the name of the field you want to go to when the button is clicked.