Mirage2/user_config/usr/share/mirage2/key-bindings.json

{
    "keybindings": {
        "help"                   : "F1",
        "rename_files"           : ["F2", "<Control>e"],
        "delete_files"           : "Delete",
        "trash_files"            : "<Shift><Control>t",
        "tear_down"              : "<Control>q",
        "open_files"             : "<Control>o",
        "paste_files"            : "<Control>v"
    }
}