External Control of parameters EVAL-ADAU1466Z.

I just ordered my Eval board , downloaded Sigma Studio , looking around a bit as I wait for the board.
One thing that puzzles me at the moment , It seems like most controls are static ?
I see that I can easily adjust something like volume externally with a pot , but as far as i can tell I can not set the cutoff for a Filter for example with an external pot ?
Am I wrong ? Seems like most controls should be externally controllable for this to be usable , I must be missing something but on most modules I dont see the Orange control input.

Thanks for your time.

EDIT> Sure hope I am wrong on this , cant see any way to control a compressor or really anything dynamically..externally ?
[edited by: LalalandAudio at 6:53 PM (GMT 0) on 11 Sep 2019]