Option for copy time slot to keep reservation opening datetime

[smessie]

When accepting a repeating time slot, the opening datetime to make a reservation also shifts with a week just as the date of the timeslot.
However, some entities want to have all time slots open for reservation at the same time, thus having the need to keep the original opening datetime on accepting the repeating time slot.
Investigate if it is possible to easily and clearly add the option to keep the original reservation opening datetime.