It is possible to pause a maintenance plan by clicking on the "pause" icon, on the right side of the plan that interests you. When you pause a maintenance plan, all future occurrences are suspended, and disappear from your network planning, in order to avoid any confusion with the tasks that actually need to be completed.
You can decide to start it again at any time by clicking on the same symbol. The occurrences will then be recreated according to the plan's rules.
