Yes Really Super EASY, i upload the old app in AAB format, and work perfectly thanks for your great workIt is very simple with an existing app:
1. Opt-in to Google signing key feature.
2. Follow their instructions with pepk.jar (you will see it).
3. Build an app bundle and upload it.
A new app will require an additional step (with the #IF AAB).
Everything will be explained, including how to test it with the bundletool.
If your using Chrome you must right click and Save Link AsI cannot download bundletool.jar. I click on it and nothing is downloaded. I right click to open it in a new tab in case it is http download in https page and cannot be loaded but again I am not able to download anything. Is something wrong?