HyperHide is a simple utility that allows you to hide a selection of currently open windows, by using a keyboard hotkey. Once you run the program, it displays a list of open windows and you can check the ones you want to hide. Using the keyboard hotkey, you can then quickly toggle the visibility of those windows. Unfortunately the current version cannot remember your choices, so you have to configure it each time you run it, or after closing a window.

The license of this software is Free Trial Software, the price is $9.99, you can free download and get a free trial.