See image attachment. I often use array of clusters, there are arbitary number of fields to the cluster. Associating titles to the fields are a bit cumbersome. If I enable the label to the fields within the cluster, the title for every single element of such field within the array appears, which take up too much space. I wish label option for an element within an array only turn on one label and can be displayed at the top of the array. I wonder if anyone ever displays label to elements inside an array, since they are identical for every element.