Re : storing a default proxy value for all my mirrors ?

With respect to the online documentation
./WinHTTrack/html/step9_opt7.html 
and ./html/faq.html#Q1

is it possible to configure a default value for the proxy I use always on my
networked computer, i.e. neither via the command line, neither via a given
project. Just a default value, stored somewhere in an "Edit. Options" menu ou
a *.ini - like file.