Is there any way to find hidden objects just like findObjectAt?

is there any way to fine hidden objects just like findObjectAt.

var node = myDiagram.findObjectAt(new go.Point(p1, p2)); // ?? this only find visible nodes

Sorry, but I think not.

is there any way to achieve this?
Actually I need to place multiple nodes on canvas, which should not overlap even some of them are not visible.

I haven’t tested this, but you could try:

function searchForNodeAt(p) {
  var it = myDiagram.nodes;
  while ( {
    if (n.actualBounds.containsPoint(p)) return n;
  return null;