Cool. How can I watch videos while listening to music?

How can I watch videos while listening to songs? The operation method is as follows.

Equipment: Apple 1 1

System: ios 14.2

Software: Cool Music 8.24

1, open the cool music on the mobile phone desktop first.

2. Then click this icon in the upper left corner on the open software homepage.

3. Then in the pop-up menu, click Settings in the lower left corner.

4. Finally, in the opened page, turn on the switch on the right side of listening and saving, and it is finished.