How to close Help screen on Rasberry Pi Touch Screen


I have just assembles a raspberry Pi 3B+ with 7 inch Touch Screen with Volumio installed- feeding my USB DAC. Worked first time and I’m impressed!

I have a question regarding the Help option in the settings button. Once opened I can’t see a way to close it! Only done so by powering the Pi down and switching on again. I’m sure there’s a simple answer but I can’t find it.