Yes, called "Mercury Transmit". It's in the Preferences/Playback dialog.
It's available as a keyboard short but you need to manually set it. Edit/Keyboard and type in "Transmit" should get the option showing.
I have it set for Shift-C.
Oh yeah, thanks for getting me up to speed.
After all these years of it working, the option is now gone. Does it have a different name?
Ah, found it. It's called Show Current Frame on Monitor.
I have no "show current frame on monitor" option anywhere. Where is that on yours?