忘了在哪个github issue里看的了 
 [xlowamj4.2nz] 
$.actions 内加上 
        {
            "command": {
                "action": "sendInput",
                "input": "\u001b\n"
            },
            "id": "User.sendInput.FE9C254"
        },

$.keybindings里加上 
        {
            "id": "User.sendInput.FE9C254",
            "keys": "shift+enter"
        },

完整： 
{
    "actions": [
        {
            "...