That's correct. What they do is look at how many people wanted something like this (judging by how many asked for it with enhancement requests) to decide whether or not it would be a popular new feature.
It would be highly unusual for Adobe to make any promises about whether or not they will add your feature.
Even it they DID decide to add it, you'd probably be waiting until the next release (Cp7) to see it.
I have succcessfully applied this type of feature on my projects, with Cp4 and Cp5.5 respectively, and yet to test whether this will work also on the current version of Captivate.
I am not so tech-terms expert so kinda hard explaining things out. But I could definitely show you my sample.
Or if you could send a brief explanation on how it can be achieved (I am also not good with tech terms) I would be very grateful!