OpenSim now supports the concept of megaregions — several regions stitched together without borders. I love megaregions. For the kinds of applications that I am involved with, megaregions are a must — try sending traffic over a region border! (horrible). The diva distro comes with a megaregion.
However, megaregions have a few quirks and because of those quirks many people don’t use them. One of the major show-stoppers is importing content from existing non-mega regions. Yeah, it doesn’t work very well. But if you know the right incantation, it’s actually quite workable. I have been doing this regularly for the past 3 weeks, so I thought I’d make the incantation more public. I’m going to describe my exact situation — extrapolate for yours.