Kadence Widget Dock Addon GPL Overview:
Slide-in Widget Area
A powerful, clean, and elegant way to place content or marketing offers in front of your users in a non-intrusive manner.
Kadence Widget Dock gives you options for choosing when your widget box appears. One way you can configure it is to set it to appear after a fixed amount of time, anywhere from 1 to 20 seconds. Another option is setting it to show up after the user scrolls past a certain point.