Edit scenes on the Screen

 
​Tap
Tap the area you want to modify on the screen once so that the yellow selection appears.
You cannot modify things outside the selection.
Zoom in, zoom out, rotate, pan
If the yellow box is displayed on the tapped area, you can move freely with one finger, or zoom in and out by pinching and unfolding your two fingers.
Overlapping assets, tap the marker
If the assets are in a similar location and difficult to select on the screen, tap the marker in the timeline.
The asset corresponding to the tapped marker is selected on the screen.