By nature a Recurring Gift must be regular. It is usually paid be Direct Debit or Credit Card on a regular schedule.
If users need to have an irregular schedule, a pledge should be created instead. If users need to change the Next Transaction Date or next Amount, the recurring gift can be edited to change the Next Transaction Date or Amount of the Recurring Gift itself. The dates and amounts shown in the list on this screen are simply a projection based on the Next Transaction Date and cannot be edited directly.