I would love to be able to route the output of a MIDI track to more than just one synth. Natively, without the need for external loopback software.
As it stands, the only way to get this result is either to use a synth that includes a MIDI thru function or to duplicate your MIDI tracks.
The most obvious use case for this is only needing to edit one MIDI track no matter how many synths are playing in unison (yes, I know about linked clips, but they add complexity, as does using an exter
While additional routing options would be nice, it is fairly easy to distribute MIDI data in a track to as many instrument and MIDI tracks as desired with each downstream track having control over volume, pan, CC and other automatable parameters. The client tracks may also apply any MFX, articulation or drum map to the incoming data. And, if preferred, hide all the downstream tracks so that the whole group is represented by the master track. This track can host the automation for all the synths