Shopping cart
Allow web users (incl anonymous) to add accession to a "Shopping cart". The list of items in the list should be maintained in the browser (localStorage?). The application needs to assure that the same list is visible and is accessible in two browser windows.
A selected item is the accession (ID).
Add a page to display the list of selected items.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information