As someone who tends to have multiple tabs related to different things open at once, it would be great to be able to group open tabs into different groups / folders that can be minimized or opened by tapping on it.
i.e. drag and drop a tab onto another tab to create a group, or press the existing select tabs button and select the tabs, then press new group tab button.
i.e.e. when minimized, the group and all tabs within would visually only take up the place for 1 opened tab, in the tab view screen.