Belkin F1DN104K-3 Configuration Manual page 15

Section 2 - Configuration
Example 4 – The two below setups are identical except for the fact
that on the right setup the user chose to prevent the mouse curser
from moving from: Computer 2, Display 2 to Computer 1, Display 1.
This was done by clicking on the Yellow area between the displays.
Figure 11 – Yellow area removed at the right side
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