In your specific workflow, there exists the functionality to do Bulk Actions that include:
To use this function, search your workflow and show the results. A button “Bulk Actions” is displayed and click on it. A new set of options will appear directly below the main menu. Since Bulk Actions can have only 25 requests acted upon at a single step, I simplify the process by changing my Page Size to be “25”
At that point, I may select the box next to the Date field and it will select all of the requests. You may unselect the ones you wish that you do not want to use.
Please note that the performed action step is exactly the same as doing them one by one.