cascading squid proxies.... ? is it possible?

[Mark . Lucking]

Hi,

I would like to cascade several squid proxy servers together, which is
possible (I think) ... but I am unable to work out which of the 2.7 million
options available is the one I need to tell the proxy to forward all its
requests to another proxy...

Can someone please help... my eyesight is going trying to wade thru the
FAQ/MAIL ARCHIVES..

Mark