I must admit, I wasn't clear about it. Wrote the original post in a hurry and forgot about the exciting functionality.
Thanks Jesse!
Thank you for your question!
Well, currently it is possible to quickly switch between tracks or buses in the Solo Exclusive mode. I need to be able to click solo button holding some modifier keys, like Ctrl+Alt. And the most important part is to be able to Solo Exclusively any set of tracks, not organized in folders or grouped.
The logic behind it would be:
1. Enable SE mode but pressing the corresponding button on the Control Pane
2. Enable SE mode for the tracks that need to stay soloed.
3. Select the first track for the AB-ing and use modifier key to add other tracks to the temporary SE group.
4. To reset the selection (to dismiss the temporary group) choose any tracks without holding the key modifier and start adding desired tracks to it.
The same or similar behaviour for the Mute Exclusive functionality would be great too!
When and why would this be useful:
1. You have double tracked parts you need to audition in pairs (trios, quartets) and compare against other parts also double- or multi-tracked.
2. You are using sets of loops in your arrangement and need figure which set works best for your forthcoming masterpiece.
3.
a) You have layered sounds and need to find the perfect combo (using Solo Exclusive quick grouping) or
b) You need to quickly exclude (mute) one or more layers to see if it benefits your track.
Layers could be back vocals, synth pads, orchestral instruments, drum samples, guitar multi-tracking using different pickups, amps or instruments, etc.