Hi.
This may be my first time posting, hope I chose the right location. I have been using Roon since its beginning. I would like to suggest an A-B option like CD players have. When you locate a portion of a track you want to repeat, you press the A-B button at the start of the desired track section, and then when it plays to the desired location you press the A-B button again. This section of a track will now loop. I have used this for many many years in my reference system to facilitate tuning a room or critically listening to footer, power cords, etc. I find no easy way to do this in Roon and end constantly dragging the time-indicator back to the desired location, it’s tedious. Boy I tell ya…, these first world problems 
Thanks,
Don