Functional coverage: array of covergroups

Hi 
I need to create a array of cover groups. I declared the covergroup in a class and created a array of classes. I used generate block to instantiate the class.

Once I run the tests to get coverage, the IMC tool shows only one instance of the class and covergroup in functional coverage section. How ever there are multiple instances of this covergroup created in code coverage section. 

I need multiple instances of the covergroup in functional coverage section. 

Below is the code I used - 

class cg_wrapper ;
covergroup cg_test with function sample(bit x);
cp_temp: coverpoint x { bins zero_1 = (0=>1);
bins one_0 = (1=>0);}
endgroup

function new (string name = "cg_temp_w");
cg_test = new();
cg_test.set_inst_name(name);
endfunction

function sample (bit x);
cg_test.sample(x);
endfunction
endclass

genvar kk ;
generate for(kk = 0;kk<9;kk++)
begin : cg_test_wrap
cg_wrapper wrapper_inst = new(temp_bit[kk]);
end
endgenerate