Lets you select from a collection of stylings for presenting each item:
Number of Columns
Lets you select the maximum number of columns that can be created, up to 4. The web part will only render the set number of columns if there's enough space to allow for it. Otherwise, the number of columns will be automatically adjusted for the user's screen size.
Lets you limit the amount of items that get rendered on the page. By default, the value is 5.