Track ENV and IO windows - 'stay open' option

I keep the a global option under Advanced UI tweaks to 'Allow track envelope/routing windows to stay open' turned off because it makes it unnecessary to explicitly close those windows. But it would be good if the windows themselves had a local 'stay open' checkbox, for those times when you want them to remain open, eg, when comparing the settings for two different tracks. There are other times when it would be helpful if these didn't close just because they've lost focus, but without having to go into Prefs/Advanced tweaks for a temporary change of the default behavior. A local override like this would add value to the global 'stay open' option, and make for a friendlier and less click-intensive environment.

I'd be in favour of that especially if they also adhered to screen sets, then you can save and recall 'em +1

That would be amazing! would allow for the headphone mixer channel to stay open. it would also be nice if clicking on the "I/O" button closed it again allowing you to just have a quick glance. +1 for this!