Sony MVS-8000X User Manual page 168

To display the key priority for after the transition, press the [KEY PRIOR]
button in the transition control block, turning it on. For keys for which the
priority after the transition is different from the current priority, the
corresponding numerals 1 to 4 flash. For a key with the same priority, the
indication remains on.
Example key status display given when the [KEY PRIOR] button is pressed:
Current key priority: 1, 2, 3, 4
Key priority after the transition: 3, 2, 1, 4
Indicators: 1, 3 (flashing), 2, 1 (flashing), 3, 4
Priority Setting for Keys 1 to 8
Set the priority for each of the groups consisting of keys 1 to 4 and keys 5 to 8.
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Key Priority Setting
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Example key status display (showing the key priority after the transition)
In the VF7 'Misc' menu, select HF3 'Key Priority,' to display the Key
Priority menu.
In <Higher Group>, press the button for the group you want to be higher.
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