So I have a 2016 MBP running High Sierra. It only has a 256GB HDD in it, and I am rapidly running out of storage space. What is my best option for gaining more storage space without having to "permanently" attach an external HDD? To add to the equation, I have an old MacBook that has a lot of data on it that I would like to somehow bring over to the MBP. I also have a 2TB Time Capsule running in bridge mode that both the MacBook AND the MBP back up to via CCC. My first thought was to attach an external HDD to the USB port on the Time Capsule. Would that work and, if so, can I copy everything from my MacBook over to it as well? If I could buy a big enough external HDD, it could easily house everything I need and I can then retire the MacBook since it's so old anyway. I would also want to set my MBP up to be my Plex server (the MacBook serves that function right now, albeit poorly) with all of the media stored on the external HDD connected to the Time Capsule. I don't know if I would be able to back up the external HDD to the Time Capsule's built-in HDD via CCC though, and that's important as well. Is there a better solution to this problem? I'd rather not have to buy a brand-new MBP with a bigger HDD if I can avoid it and I don't think upgrading the HDD in my MBP is an option. Thank you in advance.