derivedDataType MtasWeekdaysStringDT

EcimDerivedString with the following pattern restriction: Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday

References from:
MtasMmtCal; VtasMmtCal;
stringMtasWeekdaysStringDT

Valid values: Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday
  derivedDataType MtasWeekdaysStringDT