I put this in as a formal suggestion. PLEASE vote at the URL below if you want to see something like it:
https://jira.secondlife.com/browse/MISC-227
Basically, I'd like to see something implemented along the lines described here:
https://wiki.secondlife.com/wiki/Prim_and_Object_Hierarchy
The idea is to allow prims to be linked in such a way that you can have a chain or tree of links, in addition to or instead of the current situation.
This would allow for creation of robots, mechanical devices with realistic movement, etc., and would allow much/most of the calculations for movement to be performed on the client side by the client, rather than within scripts, which would allow for realtime animation of robots and the like.
Please vote yes at the jira tracking URL below if you agree with this idea:
https://jira.secondlife.com/browse/MISC-227