Currently we have the possibility to fold and unfold using different shortcuts.

I would like to have "editor.toggleFold" option as well so I can have a single shortcut for that (e.g. Ctrl+M, Ctrl+M as in VS.NET)

E.g.:
{
"key": "ctrl+1",
"command": "editor.toggleFold",
"when": "editorTextFocus"
}

That way, I only have to remember a single shortcut for this and matches various other functionality in vscode. (e.g. toggle line comments/block comments, etc).

A toggle case (upper and lower) would also be nice as mentioned here. #16895