Could be possible that I am missing something, but I think it's not possible to select multiple parameters of a fixture (for example green and blue of a moving light) and manipulate the values at the same time on the Eos Consoles. I think that would be a wonderful feature for the second wheel (the left one for manipulating the playback time), which is barely used.
Example:
Light designer: "Please reduce green and blue a little bit"
Situation at the moment: Select Fixture -> turn the encoder wheels for green and blue simultaniously.
How I would like it: Select Fixture -> Select green and blue by softkey -> turn left wheel to change both values at once.