It would be amazing if TidyCal could recognize business days (M-F) rather than just calendar days.
Example: I'd like to block a number of business days prior to a consult meeting that I need in-depth review for. I have clients that love to book on Fridays for a lengthy, complex review on Monday. I need at least 2-3 business days notice for this type of consult.
While I could set 4-5 calendar days to get around the weekends, this unnecessarily pushes meetings out to the following week when I could still see them the same week.