Crop; Border - Datavideo HS-4000 Instruction Manual

Size Ranges from 0 to 50 with 1 being the smallest and 50 being the largest or
1920x1080.
Regardless of the video resolution (4K, 1080p or 1080i), setting the size to 50
would mean a P-in-P window that is one quarter of the size of the background
image or 1920 x 1080.

Crop

The PIP image crop can be adjusted by modifying the following parameters:
 Left – Adjusts the position of the left edge of the PIP image.
 Right – Adjusts the position of the right edge of the PIP image.
 Size – Adjusts the PIP image crop size.
 Top – Adjusts the position of the top edge of the PIP image.
 Bot – Adjusts the position of the bottom edge of the PIP image.
 Soft – Adjusts the crop edge transparency.

Border

The user is also allowed to add borders to the PIP window.
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