I'm trying to do an overlay graphic that shows up when an element is click. to do that i'm drawing a transition arrow between two artboards. The main artboard is the design of the page itself, the second artboard is a little edit button popover. when i go to drag the position of the overlaid element, it isn't grabbable. it shows up as a green box, but i can't click it.
how do I position that element for the overlay transition?