The MIDI rules section Wiki Entry allow you to IGNORE a specific type of event . . .
IGNORE CH#2 PG => It will ignore Program Change events coming from channel 2
Map one set of events to another . . .
MAP CH#1 CC#0:127 => CH#2 CC#0:127 => It will translate all the CC (Continuous Controller) events from channel 1 to channel 2
and you can define lists of characteristics, But would an All option be useful. . . ?