So you ended up using a pre-defined python script? Or did you use a "linking responder"? if you did the latter, please have a look at
this old post of mine. You need to be *really, really* careful with the settings you apply to that linking responder, or you can do weird stuff to shard's vaults. All the links to the same age (no matter where they come from!) must use consistent configuration, or confusing/disaster is bound to happen. Lucky enough, only 3ds Max can even create these responders, and Drizzle "normalises" the responders on conversion so that they don't do any damage to the vault. I get sleepness nights at the thought of a Blender plugin allowing arbitrary linking responders.
If at all feasible, it'd be much better if you could do the linking in Python. There's a Python script by Sirius, shipped in the Offline KI, which should make adding links easy. And crucially, when running in Uru:CC, it will send the link through xLinkMgr, which looks up the desired link configuration of the target age from a central configuration, ensuring consistency.
(Sorry for reviving this thread, but this is an important issue)