Group Jobs into One

I would like to be able to combine multiple recurring jobs into one job for this occasion.

Use case for this is we have 3,6 and 12 monthly tasks for sites and currently will have up to 3 separate jobs on the same day for 1 customer/site. would be great to be able to combine them into one on that day(while still keeping the recurring schedules) which would simplify forms and invoicing to the customer under 1 job instead of 3 separate jobs on the same day.