Taking a quick browse through the code for the Enpass extension for Chrome and it looks like it's using the chrome.storage.sync property to store the option for the shortcut. While this makes it convenient to sync across devices, I have a few different devices that I'd like to have different shortcuts on, and with the sync property being used it changes it automatically on every device.
Could you make it an option to instead use the chrome.storage.local property instead? That way I can set the correct shortcut for each devices without overwriting the others. All it has to be is a simple checkbox with the label "Sync across devices?".