Because one file in your Stockpress workspace can live in multiple Collections, you can add a file that lives in one Collection, to another Collection, without duplicating it.

To add a file to another Collection, hover over the file and click the ‘Add to Collection’ icon.

To add multiple files to another Collection, select the files and click the 'Add to Collection' icon from the action bar at the bottom of the page.

This will bring up the Collection modal, where you can choose the Collection to which you want to add the file(s).

Type the name in the field and click the ‘Add’ button. If the Collection does not exist, you can click the “+ New Collection” button to create a new Collection.

You can also add files to Collections with Collection Preview. Find out how here.

You can also move files from one Collection to another. Find out how, here.