Cool stuff. Been search quite a bit recently on Chrome for something that resembles Firefox's Panorama (https://support.mozilla.org/en-US/kb/tab-groups-removal), later available as an add-on (https://addons.mozilla.org/firefox/addon/tab-groups-panorama...). I've yet to find anything like it where with a key-combination you can get a visual Exposé-like grouping of your tabs.