Can we create a covergroup that can be instantiated number of times based on the number of channels we use?

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In reply to dave_59:

Hello Dave,

Thank you for the instant reply.

I tried to use the ref keyword and i am getting an error.
** Error: The select “req_in[0]” into a packed value is illegal for use with ref argument “condition”

Here I am passing an argument req_in[0] which is declared as logic [3:0] req_in;

Also, can i create arrays of covergroups in module ?