1, load: load the demo.
2. Stop: Stop playing the demonstration.
3. Tick: Drag the progress bar (after dragging, the resume on the lower right will continue to play).
4. Time: You can manually control the playback speed.
5.spec_show_xray 0: (You can directly press the X key switch when watching the demonstration) is set to 0, and the perspective is semi-closed.
6.spec_hide_players 1: Setting it to 1 can turn off the character status information on the left and right sides, which is more convenient.