It hasn’t changed from DS3, except that in DS4 the geoemtry belong to the root node (Genesis) and so you need to have that selected when creating the DForm, or add it to the DForm’s list of nodes by selecting it and then in the DForm pane clicking Add Nodes and selecting the DForm(s) from the list - you might want to do this as the field is scaled to include the selected node when the DForm is created, so picking abone can start it off in the right place and at the right size.