Use of aliasses in squidguard - groups ACL

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Hello,

After spending some time with the pfsense I know how to use the proxy filter / squid guard. It works reasonably, but there's one major thing I miss: the possibility of using (firewall) aliasses for the Groups ACL. Is there a kind of wishlist blog for pfsense where i can put this, or am I mistaken and should aliasses work?

Thanks in advance for reactions.