I can't bind one key with two or more commands in keybindings.json

[hronro]

My user keybindings.json is like this:
[
{
"key": "ctrl+/",
"command": "editor.action.commentLine && cursorDown",
"when": "editorTextFocus"
}
]
But it doesn't work.

[joaomoreno]

I don't think this is supported. You can, though, define a new command in an extension which simply calls two other commands. You can then assign a keybinding to that command.

[alexdima]

@foisonocean Is your intent to define a macro: e.g. Ctrl+/ should toggle comment current line and move cursor to the line below

[hronro]

@alexandrudima yes

[alexdima]

Even though #871 came up later, let's track this feature request in #871 (has more upvotes)