I know most of this should be self explanatory, I looked for a manual but could not find one.

in the context of the ESPixelStick Flashtool can someone explain the following items and how the would be used.

Hostname I was putting a specific device identifier here. Like Spiral13 or POL31 the last two digits matching the last octet of the configured IP address.
I think I just figured it out, Host name is how you identify the device if you are running DHCP But then you would be forced to run multicast.

DeviceID How is this different from Hostname?

Universe Boundary I am running 6 16 channel devices in one universe. When would this not be left at 512?