I have a database of sporting events, with fields Sport and EventDate. I have a calendar made of 37 portals (matching CalendarDate1 to EventDate, CalendarDate2 to EventDate...CalendarDate37 to EventDate) displaying all events for each calendar date. I would like to be able to let the user toggle "basketball," "football," "all," etc. so that the calendar displays only the matching events.

If I have a global field, gSportToggle, by which the user picks which sport to display, and each record has a calculation IndividualSportDate=Case(Sport=gSportToggle or gSportToggle="All", EventDate, "") then I could match calendar dates to IndividualSportDate. However, IndividualSportDate does not recalculate when the global field gSportToggle is changed.

If I make a related file with one record with field SportToggle, different users would all have to view the same sport.

Any ideas on how else I could accomplish this without creating 37 portals for each of 22 sports?

Never mind. I got it. Instead of trying to manipulate the right side of the relationship, I will manipulate the left. Instead of matching gCalendarDate1 to EventDate, I will have two text fields to match:

gSportCalendarDate1 (set via scripts, which script runs depending on what the user clicks on, each script setting a different sport)="Baseball" & DateToText(gMonthCalendarDate1)

and SportDate (a calculation)=Sport & DateToText(EventDate)

Thus, I will have 22 scripts (one for each sport) with 37 steps each (814 script steps) instead of 814 new relationships.