I tried to use change the Hotkey combination in Preferences under Hotkeys, but to my dismay, the A→B Loop is not listed anywhere in the list of functions under Hotkeys. The other option is to use the shortcut (hotkey combination) shift+command+L, which works somewhat better, but still is very annoying when trying to define specific points on the video where you want to the loop to start and end. The only option is to define the A & B points by clicking on the Playback menu item and scrolling down to A→B Loop to define point A, then do the same again to define point B, which render the function useless and overly convoluted, or at the least inaccurate and completely frustrating. VLC for Mac OS does not allow users to add a loop button on the controller bar at the bottom of the window such as VLC for Windows. I use VLC as a video player for many reasons but mainly in order to benefit from the A-B Loop function where I can select a particular section of the video and watch it over and over again at different speeds.