To copy a link/url to a collection folder
On a proof tile that belongs in the collection folder, click the collections icon.
Select copy collection link.
When you paste the URL, it will look something like this:
(the ID after 'G' is the unique reference to the proof collection).
Tip: When you’re in a collection, use the keyboard shortcut key shift + left and shift + right to move through proofs in the collection. Learn more about shortcut keys.