Scripter me2beats made this Script:
Script: me2beats_Toggle exclusive solo for track under mouse.lua
Bind this Script to a Keycommand.
With this Script, you won't even have to hoover your mouse to TCP to click the Solo button.
And then there is this Script from me2beats, for normal Solo:
Script: me2beats_Toggle solo track under mouse.lua
Bind this Script to another Keycommand
Beware: you have to have the free ReaPack extension installed and me2beats repository URL added to ReaPack;
https://reapack.com/
Me2beats Repository URL:
https://github.com/me2beats/reapack/...ster/index.xml
Hope this helps !