But more work than needed surely? If we're talking about selecting all the events to the end of the timeline of one track, then you'd need two mouse clicks to work it anyway (assuming you'd prog'd a script button on the toolbar) - one click to select the event and then move the mouse and click the button. So a right click and then 'n' would still be faster.
I might be useful to have a script to 'select events to end' across all tracks; definitely a speed advantage with a script here!