Hi guys, first of all great work you done here! 
Im an archviz guy and come here after looking some great examples of archviz using ue4 :
http://www.evermotion.org/vbulletin/showthread.php?103077-Apartment-in-real-time
So my feedback is about the process involved into importing and updating the models into Ue4
It would be great to have the option to export all the model from 3dmax (just my software of choice) to something like *.fbx or so with all the uvs and diffuse maps of every model, AND the biggest thing would be to be able to RE-import the model with the changes (i mean changes in the geometry, new materials and so, in archviz the client is always changing something --as other thousand jobs-- ) and when you re import the model, all the materials and stuff you put on Ue4 remains there, just updated with the new project.
So thats it, i hope some developer can look at this 