Choose the Maximum items [that can be added] per gallery.
Choose the Maximum number of galleries [within the collection that can be created] per user/group.
A media collection can be made up of several smaller galleries. If you are setting up the collection as an assignment, it is best to only allow 1 gallery per user/group.
If you are setting up a collection for only instructors to use, set this to 0.
Also select whether you will allow students to comment on or like each others' contributions.
In the Display list section, select how you want the collection thumbnails arranged, and whether and where you want captions to display with each item.
In the Gallery defaults section:
Select the default Gallery focus. This option allows you to define what types of media are displayed by default. Users will have a dropdown to change gallery focus when viewing a gallery.
At Gallery view options, select what view mode (Carousel and/or Grid) are available when creating a gallery. If you select Grid view, specify how many Columns and Rows you want the grid to contain.
Select whether you want to Enforce gallery defaults.
In the Availability section, if you wish, Enable the date fields and specify a period in which students can only view the gallery without contributing to it for contributable collection types. (To set access dates for the media collection activity, complete the Restrict access section.)
Complete the remaining sections of the page as desired (note the extra steps for group submissions below), then click Save and display.
On the collection's home page, if you wish to create galleries within this collection, click Add a gallery.