Setting up Zoom Gallery
The next thing to do is to go to the Components menu above. Please, look for the entry Zoom Media Gallery.

Please, look for the Settings page in the Administration system.

When you enter the Settings area, you will see pretty many options, that you would probably like to edit. Change them the way they suit you best. For example, set the number of thumbnails per page to whatever number you wish. Please, make sure that you press the Save button after you make the changes.