Plug-Ins Manual

Is there a site or a manual that explains the various plug-ins for Cubase?
For example, “Da Tube”. How do I find out what the balance knob is for? I have used “Da Tube” for almost 3 years
and still don’t know what the “balance” knob does.
Or what is “Morph” in the Channel Strip Plug-in? How do you find the info for these settings and knobs?
Thanks alot!!

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