Adding single button for adding all tabs in a group to bookmarks

[bestkindsourceisopen]

It’s very inconvinient to add every single page in a group to bookmarks. If I want to temporarily stop working with a group the need for adding every tab separately when I have i couple dozens pages there is annoying. Reverse button is already there from bookmarks I can select folder and open all pages in a group, so why not add option for both ways.