Custom Business Day/Holiday Calendar for Sequences

It would be very helpfull to be able to fill out a 'do not send on" type calendar for Sequences. I add/remove contacts from sequences all the time so managing that by the individual or modifying the entire sequence for the upcoming holiday would be very painstaking and not automated. Please consider adding a do not send on option where we can pick the dates or select a Country for all holidays…etc. Thanks!