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1. In a viewing tile, click the Image Removed Image Added button.
   A rectangular area with four corner points is displayed.
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2. Reposition the corner points to specify the area that you want to export. To reposition the corner points, left-click a corner point and drag it.

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1. In a viewing tile, click the Image Removed Image Added button.
2. Use the corner points to enclose the area that you want to mask. To add a corner point, left-click the video. You can add an unlimited number of corner points.
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   After you add a mask, you can perform the following actions:

• move corner points (left-click a corner point and drag it),

• delete corner points (right-click a corner point),

• delete a mask (click the Image Removed Image Added button),

• add a new mask.

Mask creation is now complete.

In the exported snapshot or video, the masked area is filled in with black.

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