"lock" tasks/events

have the ability to lock tasks so they don’t accidentally get shifted, when using drag and drop (cause i forget which events should not be moved). i know that there is a bit of a workaround, which is creating the event in apple calendar, which structured cannot move. however, it would be better to only have to use structured in planning. a simple toggle button during the edit/creation process of the task would work. maybe a small indicator also to show which events are locked on the daily view