First of all, as a newby, I'm not understanding why when you pose a model or have her body come in contact with another surface, she or parts of her body sink or disappear into the other surface.

Why doesn't DS4(finally upgraded to Advanced tonight)know that her hand is NOT supposed to sink down into her belly while posing her with her hand over her abdomen for instance? Or when you set her down onto a couch, bed or chair?

Take this Ultimate Bed for instance: http://www.renderosity.com/mod/bcs/ultimate-bed/88431

For one thing, when using the Parameter sliders(because the Universal Tool is a major PITA to use and I still can't position anything with it worth a crap) to move V4 around up & down & side to side, if I use the Y Translate tool, her body will disappear into the bed if I keep lowering her. Why doesn't DS4 know she has come into contact with another solid object and stop her body from disappearing?

Also, I thought when posing her in the bed, the top sheet would perfectly conform to her body. What I've  learned is that the sheet  automatically covers her, but hangs or hovers about 12-maybe 16 inches above her instead of conforming to her body. Even when choosing "Fit to." If I lower the sheet far enough to rest over her shoulders, the sheet has disappeared from the top view exposing most of her body. Like hair when you try to lower it onto her head too far. Am I going to run into these same problems when loading clothes to fit her(or trying to)?

And is there a way to have DS4 recognize when her body or parts of it have come in cntact with another solid surface and stop it from disappearing? Or props like bed sheets & clothes from doing the same?