Creation
Creating explicit buttons is fun and easy. You can always try them out immediately after creating them or can utilize the Assist Key to verify what buttons do.
If you want to create an explicit link button to somewhere within an Emacs window, then simply drag with the Assist Mouse Key from an editable buffer (outside of a draggable item) to the target buffer. Note, the same Action Mouse Key drag creates an implicit button instead.
Alternatively, the Hyperbole minibuffer menu item, Ebut/Create, will create any type of explicit button, but requires a few steps.
The next two subsections examine explicit button creation and modification in detail.