Note: b289 or later version is required for attached test preset.
Reading advertisements for new controllers (I guess you know names), I have remembered one feature I was missing. If I select some track, I would like to open the interface of corresponding Soft Synth. That is especially handy in case there are several instances of the same synth, so you can be sure you see what you really want to see.
Attached preset requires no real hardware and should work once loaded. It opens Synth every time you select some track related to it (and it closes whatever Synth it has opened before, not interesting on modern Sonar since it can do that automatically, but useful for older versions). If several tracks are related to the same synth, the result should be as expected (no "flickering").
Tested in X2 and SPlat.