Open animation window. For the first frame unhide all the detail layers.



Duplicate frame. Move the rectangles inside the dark rectangle. Move to swap each others place.



Click tween button from animation window. Apply settings as shown.





Select 4th and 6th frame and unhide one of the text layer.



Duplicate the last frame. Hide the rectangle layers. Unhide the text layer.



Repeat the above mentioned step for the other text layers.



Press Ctrl+Alt+Shift+S to save an optimized animated GIF.