How to change the kind of gallery?

You can change of gallery while keeping the same selection of pictures at any time.

To change you only have to go to page> content> Type and options

Next, choose among the tabs, select your options and click on save.
You will see in real time the result of your changes.
An icon with a white page and a yellow pencil is located to the right of the miniatures in your galleries, you can also right-click on it and click on description.

A window opens with an editor, you have just to fill in with your information