1. Open the clipping interface when you want to set the freeze frame, and then press and hold the video material and slide to the left.

2. Stop dragging when the timeline coincides with the 4th second position of the video, and then click "Video Material".

3. After selecting the video material, hold down the toolbar at the bottom of the interface and drag it to the left, and then click Freeze.

4. After clicking, the position of the video material from the 4th second to the 7th second is set to freeze, and then press and hold the right end of the marquee and drag it to the left.

5. Stop dragging after the right end of the selected box coincides with the 6th second position of the video material. So the video freeze frame is set, and then hold down the entire workspace and drag it to the right.

6. When the timeline coincides with the position of the video material in the th second, release your finger, and then click the "Play" button to preview the freeze-frame effect of the video material.