Solo Property

I think you have now found everything I know of. If you are talking about recording just one property, yes, the control click toggles them all on/off. (Personally I find this behavior a bit strange - I would have rathered it turned off everything else except the current item which is turned on - I never want everything on at once.). Sorry, I thought by solo you were talking about playback (the eye icons).

It is very common to only arm the behavior or properties (of behaviors) you want to record and do a few at a time, and layer the results together. By disarming behaviors, you can see theIr effect while you record the new take. Sometimes its useful to add two dragger behaviors for example - you can record the first dragger, then do a second recording with a second dragger. If you rearm the first dragger, you cannot see the existing drags (even if you don’t overwrite them). Same for other behaviors, but I do It most offen with draggers.

(I find I need to do elbow drags occasionally when the arms go crazy, so I add another dragger so I can see where the hands are from the first drag.)