Asset Store Tools -not working well

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1

I need a good tutorial ( video tutorial) how to deal with submission an asset to store
First:
I read the doc and how to make a submission of with Asset Store Tools.

  1. I create the Draft with Publisher Administration webpage.
  2. This is on my Asset Store Tools
  3. I put all files for asset

Questions:

  1. How can I add the images ( icon, small and big - created to be shown into asset store) - see steps: https://unity3d.com/asset-store/sell-assets/onboarding#submitting-via-portal

the Asset Store Tools did not show me this:

  • Go to Key Images, Audio/Video, and Screenshots after completing Metadata tab and fill out all fields; all fields are required.

Any help?

2

Through the asset publisher panel:
https://publisher.assetstore.unity3d.com

3

the Unity ID don’t have the upload features, not the GUI Tool.