If you are using preferred seating see this guide:
Guide: Preferred SeatingAlso check the preferred seating guides for your poker site(s):
Site Configuration GuideIf you still need to reposition your HUD then you can move the HUD to new locations on the table by holding the Control key while dragging the HUD or you can click the PT-icon and select 'Unlock Layout' to move the HUD around on the table without the need to hold the Control key. When you have your HUD placed where you want on the table you should save it by clicking the PT-icon and choosing 'Save Layout' so the new HUD positions are remembered for future tables (of that size).