I have a table of addresses that also includes coordinates. I thought it would be easy to use a coordinate encoder, like you see in many of the other ESRI products to determine a coordinate of a location as I move or click the mouse. I don't see that as an option in Maps for Office, and I think it would be handy. I could have filled in the blanks i had in my table right from my spreadsheet, rather than having to open another product like ArcGIS Online or Desktop to find these out.