Better unsolo of send tracks


If I solo a send track (second solo mode in options), it’s sending tracks will be solo’ed, too, which is fine. If I now unsolo this send track, it’s sending track won’t be unsolo’ed… Wouldn’t this be the most logical and intuitive behaviour?

I couldn’t find shortcuts a. for unsolo a send with senders and b. Unsolo all tracks at once. Do these shortcuts exist?