I have had several clients asking to migrate their books from QB into Xero in the past year or two, and it would be amazing if there was a way to simply change the connection from QB to Xero for a client's portal/close review rather than have to create a brand new profile in Double for them. The main goal would be for all of the historical information to remain in the same file for the client, like previously asked questions and 1099s and such.