Actually, never. Most of my work is in Xcode, though I do some Android Studio, PyCharm, and, if I have to, command-line gdb. As a developer working on a Mac for

Actually, never. Most of my work is in Xcode, though I do some Android Studio, PyCharm, and, if I have to, command-line gdb. As a developer working on a Mac for almost 10 years, I genuinely can't recall the last time I ever used a function key.