If you have one of these themes installed you may have noticed it comes with a Notify Me form built into the product page. Normally this form just emails the shop owner, but you can now install a snippet which will send registrations from this form to Back In Stock. It also in quick view popups, and in the narrower mobile layout.
If you have one of these themes installed you can setup Back In Stock to work with it today. Take a look at the installation guide first, then head to Theme integration to install the snippet with one click.