@ freedomcoach.... When using DD in applications with fields like mail and excel, best to use "next field" or "previous field" because the command is actually two commands in one: "tab key" and "purge cache"; otherwise you can end up including unwanted material from the previous field.
Also, you do not need to use the word "combo" in most cases but you do have to speak the entire command fluidly. Even so, your attempted command works fine for me: "press the key combo shift tab"
@Cactustweeter ...The command "tab key" seems to navigate fairly well in Commands Window.
But, other commands, like next field appear to be interpreted as text.
MacOS 10.6.5; MBPro 15 processor 2.66 GHz Intel Core i7, 4GB ; FilemakerProAdv11, Dragon Dictate 2.0.2; (Dragon Dictate Instructor for The Emergent Institute)