Hello,I've read that it is difficult to install and run Xcode from an external drive.I'm wondering if this workaround is viable: I have an iMac with 500 Gb of SSD with 430 Gb spare however I would still like to install and run Xcode from an external drive. I have Parallels installed and run Windows 10 from an external drive - an OWC thuinderbolt device with 12TB of raid 5 storage. Storing the Windows OS on the OWC drive poses no problems whatsoever - Windows loads up very quickly and runs perfcectly as the OWC can shift data around at around 500 Mb/sec. I was wondering if I should run another copy of Mac OS via Parallels and install Xcode on this version. This would satisfy both requirements - Xcode sitting on an external drive but installed on a bootable version of Mac OS.This seems a viable workaround but I'd appreciate any advice or feedback from the community. I'm slightly concerned that having 2 versions of Mac OS may confuse apps like Mail, particularly as both versions of Mac OS would be running simultaneously - ie Parallels via the native Mac OS and the Xcode version of Mac OS on the external drive.I hope this makes sense! I'd appreciate your opinions and any feedback before I take the plunge.Many thanks and greetings from the UK