A bit of an issue with the Mac version, I'd say - It still uses the identical Windows keyboard shortcuts, making it very confusing and frustrating when trying to copy and paste. On every Mac application the standard key shortcuts use the Command key, so Cmd+C Cmd+V to copy paste, Cmd+S to save, Cmd+X to cut and so on. It'd be as simple as just mapping Cmd to CTRL in this case. I'd highly recommend doing so as Mac users are all used to this setup. CTRL isn't used much on Mac.