I noted a green box for article (see screenshot). How do you do this?
This is an attached file:
| Shortcut | Command | |
|---|---|---|
| ⇧⌘ A | Attach File… |
Once you have attached the file you can click/tap-and-hold it to reveal a set of options that includes showing it in so-called “inline” style. This will make it appear as a green token:
See also Attachments, Images and Drawings