add instance before existing instance

Hello all,

is there a way to add a new instance of a Subform to show in a top the existing subform? the way it works now when you add a click on button to add a subform, the new subform shows under the exisitng subform and so forth, every time I add a subform it goes to the bottom. I want the opposite to happen where new subforms, always show in the top of old subforms.