20
1. Click - icon to show the delete icon
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2. Click Delete icon to delete
3. Click Done to save and exit
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Modification Device:
1. Click the icon to change the picture
2. Click the icon to change the picture
3. Set Matrix name
4. Set Matrix IP address
5. Change Input name
6. Click the icon to change the picture
7. Change output name
8. Save and exit
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