Since XF has no concept of an inbox and sent items, importing VB's private messages are a bit of a mess. Every received AND sent item is a separate conversation and appears in the inbox, so it's difficult to filter through. I had hoped that rebuilding conversations would merge PMs with the same subject and participants, but that isn't the case. Is there any way to rebuild VB's private messages into conversations? I realize there's no way for XF to actually know what's part of a conversation, but just a rudimentary Gmail-like system where it simply merges items with the same subject into the conversation thread would suffice.