A function to detect duplicate scenes used on the timeline

Question

I would like to check if the materials that are arranged on the timeline are not already being used on the same timeline.
Is there a better way? I would like to judge different time codes as different even if the material is the same, rather than duplication as "material".

Answer

You can check it visually by enabling "Show duplicate frames".

When this is enabled, the range of the same timecode of the same material on the timeline will be colored.
Each material is displayed in the same color, and it supports not only video but also audio.

(The image is an extreme example...)