Currently, individual clashes need to be selected one by one in the clash test results list within design review. It will be much more time efficient to be able to select one clash, move up and down the list and click and hold the 'Shift' Key and click on another clash to select the range of clashes between the two selected clashes so manual suppression can be applied. These are standard windows commands
Thank you for your feedback, this idea is under consideration as a future enhancement. We will update this idea when the status changes.