need a rolling day calendar

I need a script for updating calendar for the current month, that updates when days change, and have a 5 day rolling period where it displays when I have done a event each day and what days I can do them again. the rolling period is 5 business days with 3day max…. kind of like a cloud over the 5 business days and only 3 days allowed in the cloud at one time and shows the next time i can do the event based on the cloud and 3day max. if you know a similar program that is helpful as well. Thank you for all your help ?

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