How to set the indicator to the node when i click it in Gojs?

GoJS
1

How to set the indicator to the node when i click it in Gojs ?
$$(go.Shape, “Circle”,
{
row: 1, column: 1,
alignment: go.Spot.Bottom,
fill: “orange”, width: 12, height: 12,
margin: 2,
visible: true
})

used the above code in ObjectSingle click method. But it doesn’t workout. Kindly help me.

2

Could you please provide more information about what is happening that you don’t want, and what you want to happen instead? Some small before-and-after screenshots would help.