Please add the feature allowing selection of any group of tasks, not only via proper set of filters or Saved Search. For example, to click Menu-Multiselect option to switch to special mode where you can pick as many items you want, checkboxes next to each task could play this role in this mode to select multiple tasks. Batch edit tool could open automatically in this mode too so that you can decide what to do with selected tasks. After that it could come back to standard mode. Or any other alternative solution.