Currently a structure of kinematic skeletons can be obtained only through the use of a "Motion Skeleton" (ASM) with a standard skeleton inside that generates several body Skeletons. It would be interesting that all these files could be condensed into a single PRT file (multibody) that performs the same functions as the Motion Skeleton.
From the theoretical point of view this is possible, but obviously it presupposes a fairly radical reorganization of the creation of the Bodies within the part: it would be necessary to be able to manage them through connections (which is not possible at the moment).
In this way the structure of the assembly would be considerably simplified: instead of a system of many files (1 Motion Skel + n Body Skel) consisting of very few entities, there would be a single file containing all the necessary kinematics. This also simplifies its management on the PDM side.