A few days ago I tried it, and did not need to close SketchUp. Just disconnected my network cable and after the taskbar showed my internet connection was off, I did the report command and got the old v1 interface.
I do know how to send key stokes to SketchUp on Windows but not on mac. Some Mac users have used the cliclick utility on Mac to do keystroke macros. You would use it with Ruby’s %x command strings (which use the global backquote method.)
Here is one of J Boundy’s examples… (note, he no longer frequents these forums) …
Changing active_entities within a tool - #3 by john_drivenupthewall