So, this function used to work just fine when you had Microsoft Word open and were typing. I'm on OS Mojave (Dark Mode) and have had no luck getting this work. In fact, other commands aren't really working either, anymore. N_C_H_josh's suggestion only works if you click back into the Express Scribe window, and you can easily type the timecode in yourself by keeping Express Scribe by hitting View>Float above other windows. Really hoping someone has a solution to this, because adding hotkeys no longer works!