The Post-Filter Transformation gives you the option to "flip" the results of a Data View with ease. For example, if your Data View includes the kids attending summer camp, selecting the Parents transformation will find the parents of those kids. If your Data View includes Adult Members & Attendees, choosing the Children transformation will give you the children of those selected. To provide as much flexibility as possible, Rock allows you to transform data views by applying the following transformations: Allowed Check-In - Returns the people in the results, their family members and anyone connected to them through a known relationship that allows check-in.Allowed Check-In Children - Works like Allowed Check-In but returns only children.Children - Returns the children in the families of each adult in the results.Family Members - Returns everyone in the families of the people in the results, including the people themselves.Father - Returns the adult males in the families of each child in the results.Giving Leader - Returns the giving leader for each person in the results. When a family combines its giving, this is the one family member Rock treats as the head of that giving. People who give on their own are their own giving leader.Grandchild - Returns the people listed as a grandchild in the Known Relationships of each person in the results.Grandparent - Returns the people listed as a grandparent in the Known Relationships of each person in the results.Head of Household - Returns the head of household of each family that a person in the results belongs to.Mother - Returns the adult females in the families of each child in the results.Parents - Returns the adults in the families of each child in the results.Spouse - Returns the married adults who share a family with each married adult in the results.