InstancedMesh with variable number of instances

Questions
1

Wow, this InstancedMesh is a great addition to ThreeJS.

But I would like to know how can change the number of instances shown on the screen. How to add a few, how to delete some of them.

I figured the count parameter is the max number, but can I vary the number of instances that are really used, like you can with the maxInstancedCount of the InstanceBufferGeometry?

2

Check out how in this example the count property is used to vary the number of rendered instances.