How to enable local echo in VSCode ESP-IDF extension?

[cskilbeck]

My app reads from stdin just fine but the keys are not echoed in the monitor - I tried pressing CTRL-T,e but it says unknown menu character. Enabling local echo in VSCode settings doesn't help either. Am I out of luck?

[lichurbagan]

CTRL-T,e is specific to the Arduino IDE Serial Monitor.
VSCode’s Serial Monitor does not support this shortcut, so it will always show:

unknown menu character

VSCode simply does not have a built-in local echo feature for its serial monitor, even if you enable echo in the settings JSON.