Need help! SSL Channel Mix Automation

I want to automate the mix level of SSL Channel but it seems like it doesn’t have a mix setting. What should I do?

SSL Channel? Mix level?
You need to explain what the exact problem is. Insert FX as EQ and Compression have no mix level in most cases.

SSL Channel is a insert vst that has comp eq and saturation etc. inside. I want to disappear its effect little by little by automation but it doesn’t have a mix level setting which I assign to automation channel. How can I do it?

I know what the SSL Chgannel normally is.
Have seen it in reality (the hardware in a console) some time ago.
This is an insert effekt, it makes not much sense to have a mix level for EQ, or gate.