Pocket tutorial you have here,
http://www.marvelousdesigner.com/Marvelous/mvtutorial.aspx?PageID=mvtutorial&ContentID=Making%20Pocket

and hem tutorial is here,
http://www.marvelousdesigner.com/forum/show-off-and-learn/206/md-sewing-series-hem-finishes

Zippers are coming in the next version and buttons are better made outside MD and put into the "Rigid decorated" group in Poser. Real thickness is a thing that you want to make in the very last minute as it destroys your careful constructed mesh.

As for missing details in dynamic mesh that is only lazyness of the content provider and have nothing to do with marvelous. All details in dynamic mesh must be welded shut so that there are only one water tight mesh. That said, much can be done with the groups in the cloth room.

Now when blender finally has come of age there are no longer any excuse for not learning it. Remember that MD is an enhancement to a modeler program not a replacement for it. You don't think that you can be a content provider without learning to model or do you? ;)