It would appear that you have multiple tab controls, each with a single tab panel where you need just one tab control with multiple tab panels.
If you open tab control setup (double click a tab control in layout mode), you can enter a tab name and click create to add more panels to a single tab control. Once you have all the panels you need in one control, you can drag the layout objects from your separate tab controls to these new panels and then delete the no longer needed separate tab controls.
Thank you. Totally works.