Hi, I am trying to apply a certain property (String) to a Logger in order to later (optionally) define a Filter and Layout based on that property, but I haven't found a (nice) way to do that with the standard API (SLF4J with LOGBack). I was thinking about providing an extension of the Logger, but that class is final so I am wondering how I can solve my problem without touching LOGBack code. Maybe I am better off in the user list, but after I wasn't sure what's the better place for that. Unfortunately, I can't use Markers, because the property is not thread based (but ClassLoader - bundle based). The only simple solution that crossed my mind was using a custom syntax for my logger name, like "my.custom.property:some.FQCN". My problem with this version is that I would change the naming convention of loggers, which I would like to avoid if possible. Thanks, Mirko