How to upload textureatlas and sprite asset

Hi @dave , I find new sprite tuterial sample.
https://playcanvas.com/project/559340/overview/tutorial-sprites

It is great function and I want use!
I can see, the sample project has textureatlas and sprite asset, but I can not create the assets when I upload image resource.

How to create the assets ? thanks.

We’re releasing these features very soon. Watch out for an announcement.