// I recently discovered I can click one tab - then hold shift and select a group - and then move those to a new browser window - then ctrl-shift-D to save all

// I recently discovered I can click one tab - then hold shift and select a group - and then move those to a new browser window - then ctrl-shift-D to save all into a bookmarks folder name. // You can just select tabs then right click on a tab to bookmark all into a folder. No need for the new window stuff.