expressing common appender properties in config

Let's say I've got several file appenders and a screen appender, and  
I want them to use the same layout.

    log4perl.appender.foofile = Log::Log4perl::Appender::File
    log4perl.appender.foofile.filename = logs/foo.log
    log4perl.appender.foofile.mode = append
    log4perl.appender.foofile.layout = PatternLayout
    log4perl.appender.foofile.layout.ConversionPattern = %d{dd/MMM/ 
yyyy:HH:mm:ss.SS} [%p] %c - %m - %F:%L %P-%X{request_id}%n

    log4perl.appender.barfile = Log::Log4perl::Appender::File
    log4perl.appender.barfile.filename = logs/bar.log
    log4perl.appender.barfile.mode = append
    log4perl.appender.barfile.layout = PatternLayout
    log4perl.appender.barfile.layout.ConversionPattern = %d{dd/MMM/ 
yyyy:HH:mm:ss.SS} [%p] %c - %m - %F:%L %P-%X{request_id}%n

    log4perl.appender.screen = Log::Log4perl::Appender::Screen
    log4perl.appender.screen.layout = PatternLayout
    log4perl.appender.screen.layout.ConversionPattern = %d{dd/MMM/ 
yyyy:HH:mm:ss.SS} [%p] %c - %m - %F:%L %P-%X{request_id}%n

This is rather tedious, to say the least. Is there any way to  
abbreviate this in the config file, e.g. to specify common properties  
of my standard appender and have the other appenders "inherit" from  
it? Or do I have to resort to configuring from a hash if I want this  
kind of expressiveness?

Thanks
Jon


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