[squid-users] how to add default directive to squid

[--Ahmad--]

Hi Developers .

i want to add like default directive to squid

as we know the default cache_mem is 256 M
i want to add some config that will be default loaded to squid and don’t want to add it to squid.conf 

say i want to add directive like dns to be 127.0.0.1
and i don’t want to put it myself in squid.conf
i want squid to load it internally and replace it if i add the same direct in squid.conf 

kind regards