OK ACTUALLY. Just had a breakthrough. From another post:
Once the Plex Media Server is running, point a browser at it to claim and configure, http://shield.ip.address:32400/web . The Shield’s IP address is available in the Shield settings or in the lower right corner of the screen when in the Plex app settings.
I tried this without realizing the logging port was 32500, and the port requested here was 32400. Once logged in this way, I was able to go add all my external HD library folders correctly! Hope this helps for you too sredo1. Here’s the other post link:
