Multiple Sig Options?

I tend to use the same auto-sig for all of the 20+ lists of which I am a member and I forget as I go from list to list which censors more severely than another. How do I get KMail or some other Linux E-mail app to pop up a selection of sigs each time -- that will remind me to be more selective. A couple of hypersensitive folks lacked the maturity to ignore sig content with which they disagreed and prompted the listmom (elsewhere) to send the list a censorship warning that nothing off-topic was permitted -- even in sigs! Thanks! doc -- "Nothing offensive in my sig no more, yea nothing in my sig at all. Silence born of fear, freedom sheds a tear, and life is darkened all around."