I've just purchased the Pro version and I don't seem to be able to active the home/back button in my gallery. I use the Lightroom plugin and I've read the JB configuration options (http://www.juicebox.net/support/config_options/) but it won't show, I've also tried just editing the config.xml file to add the option, no success.

I feel like it's a bit unclear exactly what options to use in order to activate the home/back button. I've tried the following options:

showSmallBackButton="true"
backButtonUrl=""
backButtonText="testing"
backButtonUseIcon="true"

Of course not all of these at the same time.