* each cell will have an own ViewModel and this may decrease the pivot grid performance. Use it only* The pivot group cell is the one that belongs to the columns generated for the top axis dimensions.* The pivot group cell is the one that belongs to the columns generated for the top axis dimensions.* The pivot group cell is the one that belongs to the columns generated for the top axis dimensions.* The pivot total cell is the one that belongs to the columns generated for the top axis dimensions.* The pivot total cell is the one that belongs to the columns generated for the top axis dimensions.