Activity Sheet - Milestones (zero-day duration & unable to un-milestone)

Zero-day durations - Milestones in the activity manager are now zero-day activities. This does not reflect the functionality available in other scheduling tools(like MSProject) and is also a step back from what was available in Schedule Manager. We need to understand if ranges will be able to be entered in the future for milestones in activity manager. If not, why?

Also, once a milestone is set, you cannot change it back (toggle) to a regular activity (at least what I am seeing). One has to recreate the entire activity to NOT be a milestone. This is a cumbersome and not intuitive task for users, especially if linked to a WBS code. In Schedule Manager, it was a checkbox. Activity manager is now a step back in functionality and we cannot find any documentation on if this can be done.