I wish to schedule a task that will repeat indefinitely every 10 minutes.
You can do this using the Windows task scheduler application, in the 'advanced settings' section of the 'edit trigger' dialog.
However, on AI 11.4.1, you cannot do this on the 'Edit Task Properties' dialog. You can specify an extremely large value for the duration period, which in practice would have the same effect, but I think it would feel cleaner if you supported an indefinite duration period.
(Currently you inhibit specifying a duration period less than the repeat period. Maybe you could use a duration value of 0 as a special case to represent 'indefinitely' ?)