Understand Audio Source Buttons
There are three buttons in each audio source clip.

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After you selected part of audio source clip, you can click this button to copy selected audio to clipboard, then you can paste into the target audio clip. |
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Click this button, a audio information window will popup, which will show you some information about this Audio source file, for example : Title, Album, Artist, Composer and so on. |
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After you selected part of audio source clip, you can click this button to save selected audio to a new audio file. |
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