Not saying that I went through everything with a fine tooth comb, but my approach to technology has always been to explore the capabilities of a system and see how it can be best adapted to suit the local requirements. I hear what you are saying about the single-catalog workflow solution, but interestingly in the 3 or so years since I have been using lightroom I have never seen anything official about that, or in any of the marketing/setup instruction etc. Thanks for changing this to a feature request - that's effectively what I wanted it to be, but obviously missed that option!