Thanks again to you and your colleagues for the fact that in January 2019 you plan to make it possible to adjust the sound on the monitors on a schedule. Do not think for arrogance. :) Maybe your colleagues - programmers will be able to make the function of setting the volume of the sound of each video, when forming a playlist. This will help solve the following problem. Not all advertisers provide commercials with high-quality sound. When videos with low-quality, quiet sound in one playlist are located next to the rollers, where the sound is of high quality, loud. Then, when playing this playlist, the sound of some clips is heard well, and the sound of other clips is heard poorly. Thank you very much. Sincerely. Dmitry Kostyuk.