With the latest editing improvements, the ability to display an attachment file as a link has been removed from the Link Macro. It is now only possible to link to known pages with this macro.
Displaying a link to an attachment in a page is only possible by attaching it using a macro directly or as a preview.
Provide ability to link text to attachments using the Link macro.
By using the Attachments macro, you can obtain the URL of an attachment and link text to that by pasting the link into the Link Macro.
By visiting the `Attachments` page through the `•••` menu, you can right-click on the attachment links and `copy link address`. Then use that as a text/blue link.