Could anyone provide more detail on how to span Promoted Links in SharePoint 2013 to display on multiple rows? I've looked at the following link that details the process, just have no idea what file(s) to edit.
Instructions are included in the article.
To create multiple lines just adjust the width of the webpart till you have the right number of rows you need (e.g. reduce the width to create more rows.).
I am using it and it works great!