A "Teaching-Mode" while connected via "Remote-Control" from PC -> Android

[NiNi4711]

I would need a "Teaching-Mode" for my parents, aunts, uncles etc.

It would be much more easy if the Android-User could see,
where i am with the Mouse while controlling the android-device from my PC.
(this coud be a 2nd Mouse or a take control of the android-system-mouse)

In addition a bidirectional audio-connection is very useful too.
(for my explanations and for questions.)

A Chat is like an old Typewriter and faxing the Result ;-)

Kind Regards from Hamburg/Germany