"Only On Change" option for Launched tasks?

Submitted by a customer, and re-posted here for voting:

Tasks: Add "Only On Change" option to manually ran tasks (Not just scheduled)

Under Tasks the "Only on change" Option is only available when you go to schedule a task, and unavailable for when you want to manually run a task. My scenario might be unique, but I have a Clarity project for data analytics purposes, where overtime I will continue to add models that will never change, and will not need tasks to run on a schedule but manually when I know I have added a batch of new files. Would it be possible to have the "Only on change" feature for tasks ran manually so that models previously in the project location are ignored and only new models are ran but added to the overall data sets collected? Hopefully this was clear.