When you add a calendar, you can specify dates in the following manner:
For each date or day entry that you make, you must select whether to include or exclude this entry from a calendar. BRMS excludes entries unless you specifically include them. For instance, if you set up a calendar with entries *MON, *TUE, *WED, *THU, and *FRI, with each entry included (*INC), then any day is a candidate move day for this calendar. You would exclude Saturday and Sunday. Conversely, if you set up a calendar with entries *SAT and *SUN, specifying *EXC for these entries, you will exclude all of the other days of the week.