Related article HERE: Can I Display ALL My Images In My Gallery?
Let's say you want to add more services to your services section/ page.
1. Navigate by clicking on the section you'd like to edit. The left editing pane should change as shown:
2. Select “Display Options”
3. In the "Display Options" view, change the number of items showing by changing the "Number of items to show" field.
Click on the drop-down menu and you'll be able to determine the number of images that gets displayed in this section.
You can specify any number or you can also choose to show all items in the collection by checking the Show All option.