heyas; im pretty sure you need to use body parts in an ik chain. if a row of spheres was put into an ik chain, my guess (i dont recall seeing that, though it sounds vaguely familiar) is that they set the spheres up in the heirarchy first as a quickie figure. to make the chain posable, you must make it a figure. slice the length into a buncha parts, make sure each length has a decent number of rows of polygons (4 or 5 or so). you can name them base, link1, link2, etc, and put the monocole on the end as, well, monocle. then just make an ik chain out of the whole deal, with the base as the base and the monocole as the goal. okay, so then you load the monocole figure and you stick the base on the chest/vest pocket. parent the monocle figure to the chest. turn on its ik chain. now you should be able to change the parent of the monocole. normally when ik is on, the parent is the ground. make the parent the figure's head. now, in theory, as you pose the figure, the monocle will stay stuck in his eye, and the base will stay stuck on the vest pocket. (note: if you have a man wearing a conformable vest, parent the monocole to his chest, not the vests. this only seems to work when the parent of the base and the parent of the ik goal is on the same figure.)