Unfortunately, that didn't work.I changed ADDDAYS to ADDWEEKDAYS . . . group.1.valueexpression=ADDWEEKDAYS({plannedStartDate},1)group.1.displayname=Week ofgroup.1.iscollapsed=truegroup.1.groupdatesby=WYgroup.1.linkedname=directgroup.1.notime=falsebut ended up with this (a grouping for each weekday o...