The task stays in Recurring. When a new round starts, its ticks clear so you can do it again. Each time you tick it, it is logged in Completed.
The task starts again on this day each week.
For example Wednesday + 2nd is the second Wednesday of every month. Pick the day first, then which one. Choose "Last" for the last one, which covers months that have five. The task starts again on that day each month.
For example 19th February + "Or the first following Monday" means 19 February, or the next Monday if it falls on another day. A 29th of February becomes 28 February in years without one.
After this day the task stops starting again. It stays in the list until you delete it.
The task stays in Later until the week this date falls in begins. Then it moves to that day of the week.
You are emailed at this time. You can switch reminder emails off in Preferences.
They will see this task's name, project, notes and date, and can tick it off. Recurring tasks can't be shared.