Here you are my friend - I made screen shots of the FBX settings over my lunch break. I also show the UE4 import settings. On The Daz export there is button to open up the morph preferences. In there you can used wild card symbols * If I remember correctly to export the specific morphs you want. Also make sure animation is checked so the animations from Daz come through. I used the Upland Troll which is one of few Low poly models that they offer through Daz. Most Daz are high ploy and require decimation for game work unless you are using them for a cut scene or something. The morphs are endless so you can actually design unique char all by dialing the morphs if you want. One correction for my picture. The selected box should be checked for better results.
