The scrap box view was designed predominately for your eyes only. However, in the event you'd like to to share a scrap, you can do so in a couple of ways.
Start a new project or move a scrap to an existing project:
To perform this action, click over to your scrap box. Locate the file you are looking to share. Click the ellipses in the top right corner of the scrap, select the "Add to project" option in the dropdown. You can add a scrap to a new project or an existing one.
Steps to move multiple scraps at once:
Press "Bulk actions"
Select multiple files
Select the "Add to project" option in the bulk menu
You can add scraps to a new project or an existing one.
The project that you move a scrap into will immediately open when you press "Add to project" button.
Note: You can only perform this action for an existing project if your project access is set to "Editor" or "Admin".