(This works at least up to version 1.52.0, 10 Dec 2020)
On macOS Visual Studio Code version 1.36.1 (2019)
To auto-format the selection, use ?K ?F (the trick is that this is to be done in sequence, ?K first, followed by ?F).
To just indent (shift right) without auto-formatting, use ?]
As in Keyboard Shortcuts (?K ?S, or from the menu as shown below)