I like nearly everything else about Opera besides the lack of being able to see my tabs vertically. I can see about 7 tabs horizontally easily, however, when researching a topic and I need 20+ tabs open, it would be much easier to look at the tabs like a list. I understand similar functionality exists, using opera://activity (or chrome://activity). I'm envisioning instead of a new tab with tabs listed for all the instances, just the tabs for the instance I'm in. Visually similar to the Easy Setup overlay in the sense I can click a button and see my tabs vertically on the right but is not there by default.