Layout Editor is a tool of the Theme Tweaker add-on that aims at editing a page layout. Using this tool, you can drag‑n‑drop the info blocks to change the position. It can also help to change the store logo, favicon, and Apple icon, if necessary.
To start using the tool, open the storefront when logged in as an administrator. You should see the Theme Tweaker panel at the bottom. Locate the Layout Editor tab and click on it.
You will see the tool panel divided into three blocks:
Logo & Favicon
[N] disabled blocks
The Storefront layout and [N] disabled blocks sections allow adjusting a group of layout elements on a page that is currently open. The Logo & Favicon section applies changes storewide.