Click on the name of the gallery you would like to view.
Once opened the controls from left to right are :
The bottom left square is the gallery button which when pressed will take you
back to the main gallery menu.
The left pointing arrow takes you to the previous image group.
The minus sign will take you to the previous image.
The numbers and thumbnails are the navigation bar.
The plus sign takes you to the next image.
The right pointing arrow takes you to the next image group.
The arrow far right is the auto pause and play button.
Happy viewing.