I apologize for it but... I'm using beaver in my site and, when I install the plugin Fast Beaver Control, I can't edit the page content. When I uninstall de plugin, I can edit again.
So, didn't work for me
Been wanting something like this for a long time. Things like acknowledging the source a visitor came from without building a separate landing page for each traffic source or affiliate is super easy with this plugin. Also will be experimenting with personalization.