:)  I've mentioned this to Reallusion on their FB page, same title. The main issue why we can't have this right away is that they don't have body expression editor but we can get close if Reallusion will simply split the rest of the body parts and allow the normals from them to be converted to displacement and subdivide those as well. They could make this available pretty fast since it would only be a matter of recording a Zbrush macro of the same process  splitting the head, sending the normals to the other body parts, subdividing them etc but if they were to create a whole other component for "Body Expressions" it could take months to a year unless they've already been working on it. This is why I've requested the simple/essential approach because we would have something to work with maybe sooner than later: 

https://www.reallusion.com/FeedBackTracker/Issue/Essential-Please-Split-body-Parts-when-using-Zbrush-Face-Tools-and-apply-the-displacement-maps-to-them-as-well