A potential location to add this toggle button would be under the Data Management settings category.
Details from the customer review on the web store:
This is a great and intuitive app to manage all my tab windows. I would rate this a 5 if it had some glitches fixed:
The restore button for a window sometimes simply doesn't work. It's unresponsive on click.
Sometimes restoring a window leads to each tab being directed to a strange url prefixed by data:text/html;base64. This page contains the link to the real tab. No data is lost, but it's an inconvenience.
A potential location to add this toggle button would be under the Data Management settings category.
Details from the customer review on the web store: