Extron Electronics VN-COMMANDER - Manual (Page 59)

I456GB issue 8 49
VN-COMMANDER User Guide Section 2: System Configuration
To delete a single Source Definition...
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Right-click on the appropriate source definition in the
source explorer.
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Select Delete Source from the popup menu.
To delete ALL Source Definitions...
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Right-click on the Display Processors item.
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Choose Remove All Devices from the popup menu.