Having the option to disable schedules within the Designer application would be advantageous for we support staff. Especially when multiple service restarts or server reboots are required. When we perform migrations or restores or even upgrades or when conducting server maintenance actions. As we know starting of the Alteryx service immediately queues up workflows to be run based against there schedule times. When maintenance is being performed we do not want workflows to run, and/or having to wait for completions or have the user to rerun the workflow. The option to temporarily disable schedules globally with a click of a button is far better then changing the parameters of the schedule or even deleting it. To go a step further = an internal mongodb administration command to disable/enable schedules would also be helpful at the database level
