Allow Flash videos to run full-screen on one monitor option
https://store.stardock.com/product/ESD-SDS-W1207I just went from the trial to full version of WindowFX 5 and the option to "Allow Flash videos to run full-screen on one monitor (on a multi-monitor system)" is now unavailable (completely disappeared from the configuration). It worked in the trial version and was the deciding factor in purchasing this software.
How do I get this option enabled again?