Hi again,
When you have uploaded all the pictures you want to include in your gallery, you choose one unique number for every picture you want and then (optional) write a description.
When it's done you can save it to a specific page of your liking at the bottom of the page.
You can have as many as you like, when the storage reaches the maximum, you won't be able to upload more pictures.
Mvh / Best regards
Måns Gullberg