Unlink Items in Your Items List
If you are looking to keep your list items from opening a new page, you can do so like this:
1. Select Content
2. Select the Page with your list
3. Select Design this page on the right side of the page
4. Select your list on the right side of the Design Panel
5. Locate Truncate primary block content and uncheck the item
6. Select Save
7. Select Publish