The CLoth Room has a section called "Cloth Groups." In this section are the following options: New Dynamic Group - let's say you have a single model, and you want part of the model to be stiff (like leather, or sequins, or whatever), and the rest "normal". First, you create a New Dynamic Group named Leather or Sequins. Then you click the Edit Dynamic Group button to select the vertices. Finally, you assign different Dynamics Controls settings to make that section stiffer. A cloth object can have several dynamic groups. Choreographed Groups allows you to assign vertices to a piece of cloth, and animate them. I've never tried this, but for this I visualize something like turning a cloth plane into a ghost. You assign the vertices in the ghost's "head" to a choreographed group, and then animate the group so that the ghost head flies around, while the unchoreographed verties follow around like regular cloth. I think I'll have to test that example out. A cloth object can only have ONE choreographed group. Constrained groups (one per cloth object) ... somewhat similar to choreographed groups, except constrained groups sort of "hang on" to the figure. For example, if you don't want dress straps to slip off the shoulders in a certain pose, you can add a row of vertices at the shoulder to a constrained group, and that will prevent the straps from slipping. Or, you can constrain the waistband of a skirt to prevent the skirt from dropping to the floor. Soft decorated group (one per cloth object) ... good for belts, pockets, or other pieces of clothing that are modeled seperately but have to flex with the clothing article. Rigid decorated group (one per cloth object) ... good for buttons, pins, belt buckles, or other clothing that doesn't bend but that has to stay in place. For example, if you have buttons on your clothing they are typically modeled as separate objects. If you don't assign them to the Rigid Decorated Group, they will fall onto the floor during a simulation. If you need further info let us know!