How to Set Shuffle Mode To Locked

This is not super easy to do because of the way Pro Tools reports the value of the Shuffle button, but this should do:

const { shuffleModeButton, slipModeButton } = sf.ui.proTools.mainWindow.editModeCluster;
slipModeButton.elementClick();
if (shuffleModeButton.value.invalidate().value !== "Selected") {
    shuffleModeButton.mouseClickElement({ isCommand: true });
}