How can I add a Delete Actions button to the Implementation Plan of a Change Notice.

We have a number of Change tasks that are added to a Change Notice as part of our standard Change Process. Dependent on the nature of the ECN Sometimes we do not need all of the tasks that are listed. I am looking for a way to be able to select multiple tasks and be able to delete them in one go. Current OTB functionality is you have to select each one indiviually and then right mouse click to delete. I hope I can add a button to the actions to do this as a collection.