I just "upgraded" to the "pro" version of this plugin to restore the very same functionality that it used to provide in a much earlier version, i.e. the ability to assign custom sidebars to post archive pages and/or custom post types. After jumping through your incredibly labyrinthine purchasing process and getting an entire second "Dashboard" of your own creation added to my toolbar, not only can't I do what the pro version promises, but I can't even put a simple custom sidebar on a specific post! Each time I check the box to "allow this sidebar to be replaced" it doesn't save. In fact, there's no save button at all for that action. And to add insult to injury, before I purchased the "pro" version, that sidebar had the checkbox checked! What on Earth is going on here? I'm not just incensed, I'm practically litigious. You know what it's like having to launch client sites months in the making during the wee hours? And to find that functionality is REMOVED by updating a plugin? And having to shell out money under extortionary terms not to have to explain to the client why nothing on the site looks like the development sandbox? And to miss your deadline because you didn't have time to develop an entire plugin on your own?