I do not know how to use the device simulator - can someone please explain?

[Gadgetguy2000]

I have installed visual studio, python etc. and the device simulator extension.

Then what? How do I actually use this?

I would like to simulate a micro:bit but found no details whatsoever about how to do it...

Also: it seems that maybe Visual Studio does not see Python - although it is in the PATH - maybe that is also an issue? But how do I fix it? Any other applications sees Python...

Thank you for any pointers.