These CCs can be hidden/ shown by going to SONAR's Console View, opening the Options menu, FX sub-menu, and selecting (or deselecting) Show Assignable Controllers.
There was a point in time when showing these controllers could be useful for assigning them to control surfaces and also for grouping them. ACT and various control surface support has taken care of that need while its far better to group said controls in either an FX Chain for an effect or in the Synth Rack's Assignable Controls for software instruments. I guess it could still be useful for controlling/ grouping MIDI FX, though.
As such, I usually keep it hidden.
