Is it possible to call a hotkey command from script?

There are a handful of commands I'd like to access from script, however, there don't seem to be any ways to do so.

For example, I would like to trigger the Timeline command to "Scroll topmost selected layer to top of Timeline panel", which is by default bound to "X"

This command is not present in any menu item, so doing app.executeCommand(app.findMenuCommandId("Name of command...")); so this method does not appear to be viable.

Any thoughts?