With the current covid-19 situations, lockdowns can have last-minute temporary impacts on our schedule - we go into a modified hybrid or 100% remote schedule during a lockdown period and return to normal schedule after. For the return, in order to not have the normal schedule overlap with the lockdown schedule, I have to build it again with a post-lockdown begin date, and go through individual section schedules to make the same adjustments I made before lockdown. It would be simpler to have an option for schedule sets to cover multiple periods, ex, Jan1-30 and Mar 1-30.