This might be a stupid question, but why do we have to do this? So the camera (I just bought an E-M5ii) can detect the focal length you are using and display it on the top right of the screen when you half press the shutter button. It also detects the focal length when it adjusts the minimum shutter speed in aperture priority for example. How difficult would it be to detect the FL and adjust it in the IBIS menu for you? I don't mind this with my primes, but it's pretty annoying with my zoom lens. I'm new to Olympus, is there something I'm missing or just unaware of?