keybindings.json

// Place your key bindings in this file to override the defaults
[
    {
        "key": "cmd+c",
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "\u0003" // c = 3 position in alphabet. hex(3) = 3
        },
        "when": "terminalFocus && !terminalTextSelected"
    },
    {
        "key": "cmd+e", // end of line
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "\u0005" // e = 5 position in alphabet. hex(5) = 5
        },
        "when": "terminalFocus"
    },
    {
        "key": "cmd+a", // start of line
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "\u0001", // a = 1 position in alphabet. hex(1) = 1
        },
        "when": "terminalFocus"
    },
    {
        "key": "cmd+u", // clear text
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "\u0015", // u = 21 position in alphabet. hex(21) = 15
        },
        "when": "terminalFocus"
    },
    {
        "key": "cmd+r", // reverse search
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "\u0012", // u = 18 position in alphabet. hex(18) = 12
        },
        "when": "terminalFocus"
    }
]