Training Program Schedule

I have been using a training program thru one of the Coaches on Garnin Connect.  I originally put that long runs would be scheduled on Saturday.  The program is trying to get me to run 2 hours run on Thursday this week.  But I work 12 hours days, 5 to 5.. reason why I choose Saturday for long runs.  Hours for that day are 1 to 1.  Plenty of afternoon to fit runs and family in.   

Does anyone know how to swap scheduled runs? If I try to reschedule it, it wants to delete the one listed for that day. Will it automatically update the Thursday with another run once moved?