A few pages back I posted a link of a tutorial I did on pmd. Just follow the steps and it's as simple as that. This workflow hasn't failed me yet. There's also some useful info about morphs. All just basic stuff ( which is about all Im capable of ). but it works for me. I have no idea if it works in Dstudio but I imagine it would with the python script mentioned. I have no idea how to do inj/rem ( only pmd inject  ) but you can look at other pz2 inject/remove to get an idea of how it works.

Just a few tips about making morphs
**In other apps
**Always use the full obj even if your  only working on the head. I notice sometimes with other apps you can get some weird offset effects ( especially with head morphs ) when you dial the morph it jumps and basically ruins your work. So I always use the full obj and it has yet to fail me. Also make sure you have your export options just right for whatever app your using so you don't dive into alot of work only to realize later it was only practice. If you find you made a great
morph but messed up your export settings use that morpher program by Kaweki that ODF mentioned. I have used it on a few times to fix the dreaded "Target geometry has wrong # of verts" and re-ordering problems when I used the wrong export options.

**In Poser
**Always turn IK off, Zero figure and export with "As Morph Target ( No world Transformations )"
Magnets are always a great idea for general shaping ( nothing to complex unless your a pro ) but the great thing is you can use it with clothes.

ODF
Congrats on getting married. Shouldn't you still be honey mooning? What u still doin online? Hehe..just kidding but yeah take some time off you won't regret it.

Cheers
JB