Timeline navigation hotkeys When scrolling through the timeline, is there a way of locking the play head to the center whilst the strips, and other open windows, move, rather than the play head moving then having to keep manually readjusting the strip positions?

Or is there a shortcut key to center the play head if you've lost it, without pressing "home" an then zooming / re positioning / zooming / re positioning?

Iv'e just been through the blender hotkeys and cannot find anything.
Unfortunately not. The closest there currently is in official blender is follow playback, which will at least keep the playback head in the view.