Graph Editor: "Auto-Focus Channels"
"Auto-Focus Channels" focuses the view automatically based on selection. This means, that the view is framed to the curve of the selected channel and all other curves are hidden.
It works for all channel selection methods (click select, border select and select all), but I added some logic to keep the user set visibility for border select and (de)select all. I'm not too sure if this "feels right" from the UX side, but we'd need some users to test this (I can create some testbuilds if needed).