Amcrest AMDV5M32-6TB Quick Start Manual page 16

Note: Click the eraser icon to the right of any day to clear the entire row of blocks.
6. To add or remove motion detection blocks, click on the checkbox next to Motion, then click the
individual cells on the grid or click and drag for multiple blocks.
7. To the left of each day, there are small boxes which can be marked to "link" different days
together. This is useful if you want to save time by instantly making changes to multiple days
simultaneously.
In the below example, Sunday and Monday are linked, so any blocks that are added or removed
for Sunday will automatically and immediately reflect the same for Monday and vice versa.
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