Thanks for the reply,
I'll also try this method with decreasing contrast of alpha channel.
In hsGUI this filter was placed with the last ID from G26 group (I192).
I already figured out that the last object in G26 group in ACM GUI is I175 so I decided to place the filter as I176, I also checked that item ID for this filter does not exist in G26 group, but thanks for explanation, now I know that it was the right way to do this.
anyway it needs a try