Triumphboy69,
The Nauticus Trim Tabs do not retract. They are adjustable as to pressure settings, but that is best done when they are out of the water. When I beach my boat, I always put the bow on the sandy shore and leave the stern in the water with the motor raised up. As long is there are 4 or 5 inches of water at the stern, there are no problems with the Nauticus Trim Tabs.