Audio mute works in Yosemite just as alternaut said. It appears, so far, that pbguy is right about pinning tabs only working in El Capitán.


Jon

macOS 11.7.10, iMac Retina 5K 27-inch, late 2014, 3.5 GHz Intel Core i5, 1 TB fusion drive, 16 GB RAM, Epson SureColor P600, Photoshop CC, Lightroom CC, MS Office 365