I think it would be great if you could force abbreviations using Maplex, rather than simply having the labels abbreviated only when space is a concern. This would be useful when labeling streets - my dataset may have "Road", "Street" etc. spelled out fully but the only way for me to standardize everything to "Rd", "St" etc. is to actually edit the data. Would love if I could use my trusty abbreviation dictionary to force all abbreviations.