Navigating the timeline is a huge pain. We all know this. The default keyboard shortcuts help, to quickly show/hide properties (P, A, R, T, S, M, U).

"Show Selected Properties" is a useful command. However, it's only accessible via the "SS" keyboard shortcut, and is impossible to re-assign.
Please add this as a Menu Command (Animation > Show Selected Properties), allow the Keyboard Shortcut for it to be changed, and allow scripting access to execute this command as part of a script.