Estensione barra laterale

[Anke]

Try the paid one from Andres Cotes and see also here:

Sidebar free extension permission

Hello everyone, I hereby authorize anyone who needs to use the sidebar version free extension for the MIT App Inventor Hackathon 2020 event to do it. This permission corresponds to this year and event only. @ewpatton I, Andres Cotes, attest that I am the author of the extension Sidebar free version and grant that the extension included in this project is free and that MIT has a non-exclusive irrevocable license to republish the extension as part of the project file for the purposes of the MIT …

You can also try the free SideBar extension from Ulli, @Ulrich_Bien:
https://ullisroboterseite.de/android-AI2-SideBar-en.html