Q1 : yes but : - you have to alter the mesh, either by using a modeling program, or by exporting the mouse's head and hands, then reimporting them as props and then exchanging these body parts for these newly creatd props -then you'll probably have to adjust the joint parameter settings Q2 : it is possible, but : -you'll have to alter the mesh, either by using a mofelling application, or by using magnets -you may have to alter the grouping, either with the grouping tool or in a modelling proggy -you'll have to modify the joint parameter settings Q3 : not much more easily than for Q2. Hope this helps.