%CALC{"formula"}% macro is handled by the SpreadSheetPlugin. There are around 90 formulae, such as $ABS(), $EXACT(), $EXISTS(), $GET()/$SET(), $IF(), $LOG(), $LOWER(), $PERCENTILE(), $TIME(), $VALUE(). %CALC{"$SUM($ABOVE())"}% returns the sum of all cells above the current cell
%CALC{"$EXISTS(Web.SomeTopic)"}% returns 1 if the topic exists
%CALC{"$UPPER(Collaboration)"}% returns COLLABORATION