[
    // Save All
    {
        "key": "ctrl+alt+s",
        "command": "workbench.action.files.saveAll"
    },
    // View Next Terminal
    {
        "key": "ctrl+shift+'",
        "command": "workbench.action.terminal.next"
    }
]

[
    // Save All
    {
        "key": "ctrl+alt+s",
        "command": "workbench.action.files.saveAll"
    },
    // View Next Terminal
    {
        "key": "ctrl+shift+'",
        "command": "workbench.action.terminal.focusNext"
    }
]

Use focusNext for terminal changes
Use focusNext for terminal changes