Be able to tell a prim in a link set a point on another prim to always point at. My thinking is to have a new tab in the Build window (like the one for Flexible prims) for the linking dynamics: 1. Select linkable, select prim this prim should link to. (see MISC-428 for hierarchical linking). 2. Select a point on the parent prim this prim should always point to (see SVC-1902 for concepts of touch position). 3. Choose which axis of the prim should do the pointing (one of the six axial directions). 4. Choose distance to point the prim should always maintain from attachment point. 5. Choose whether prim mass should play a role in any motion of the link set. 6. Choose resistance to angular change to parent prim normal because of dynamics of the link set. This could also create the way for a builder to specify the hierarchy of the link set for message passing as well. The idea is that I will then have a mylti-prim object that can behave as a semi-flexible object, like a real human body, if force is applied, or a child prim like a hand is instructed to pick up a glass, the arm prims will move more convincingly. I'll try to create a mockup and attach it later.