Make Element and Category Drag and Drop Consistent for Child Attributes

Comparing three of the available methods for dragging and dropping multiple attributes onto the display for table or trend symbol shows inconsistency in how child attributes are handled. 1. Dragging and dropping the element name brings all root and child attributes into the symbol. 2. Dragging and dropping an attribute category name brings only the root level attributes. 3. Drilling into a root level attribute to display its children and then dragging and dropping the root level attribute name will only bring this attribute but not its children. The behavior should be consistent. I this case, the user would prefer in every case that the children be brought along as they are interested in adding the limit trait children to the symbol quickly. I understand that other users may not want this so the behavior should be controllable on a per user basis. Maybe a popup that asks "Include child level attributes?" or a check box at the top of the attribute list.