This feature would not only enable you to receive a single MIDI CC message and redistribute this message to different MIDI outs and channels, but also to redefine what you are sending out. It should be integrated as an option for the control elements in the external devices editing view.
If you would integrate that feature you could e.g.:
Example
**from MIDI IN chan. 1, CC 7, value 1 => [(MIDI OUT chan. 2, CC 8, value 100),
(MIDI OUT chan. 15, CC 64, value 0****),
(MIDI OUT chan. 12, CC 78, value 1)]**