Remap Left Control to Hyper OS X doesn't have a Hyper. This maps Left Control to Control + Shift + Option + Command. space_cadet.left_control_to_hyper --KeyToKey-- KeyCode::F19, KeyCode::COMMAND_L, ModifierFlag::OPTION_L | ModifierFlag::SHIFT_L | ModifierFlag::CONTROL_L Use the correct shift keys. private.correct_shift_keys --KeyToKey-- KeyCode::Q, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::W, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::E, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::R, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::T, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::A, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::S, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::D, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::F, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::G, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::Z, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::X, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::C, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::V, ModifierFlag::SHIFT_L, KeyCode::VK_NONE --KeyToKey-- KeyCode::Y, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::U, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::I, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::O, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::P, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::H, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::J, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::K, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::L, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::SEMICOLON, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::N, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::M, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::COMMA, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::DOT, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::QUOTE, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::SLASH, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::BRACKET_LEFT, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::BRACKET_RIGHT, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::MINUS, ModifierFlag::SHIFT_R, KeyCode::VK_NONE --KeyToKey-- KeyCode::EQUAL, ModifierFlag::SHIFT_R, KeyCode::VK_NONE