How to monitor live intensity levels using OSC?

Unless it’s changed recently the manual is misleading- there is no simple way to get live channel levels with OSC - instead you would need to use artnet to get values and use the patch information to interpret them 

Have look to the EOS manual "Implicit OSC Output". Every time you change the value you get a message from EOS like:
OSC              2024-11-06 10:07:31.447 [10.101.1.201:57834] SEND [OSC Packet] /eos/out/active/wheel/1, Intens  [0](s), 1(i), 0.400(f)

You can also subscribe parameters, e.g. "/eos/subscribe/param/pan"

Have a look to the #lighthack example on https://github.com/ETCLabs/lighthack/blob/master/box_1/box_1_src/box_1_src.ino

Yeah - but I believe this is only for the selected channel - not for all channels

With /eos/out/get/patch/<channel number>/<part number>/list/<list index>/<list count> (Page 664)
you should also get the current level which you see also in Patch on the console.
As an alternative you can parse the sACN output.

Thanks for the info! Based on this and the discussion below, this seems to be what was meant by "monitoring streaming". I think I need to 1) determine which addresses to monitor using OSC and 2) monitor those addresses by over sACN or Art-Net.