Sony MVS-8000 User Manual page 456

To copy from M/E-1 to M/E-2
In the M/E-1 Flexi Pad control block, hold down the [SNAPSHOT] button,
then press the [SNAPSHOT] button in the M/E-2 Flexi Pad control block.
Keyer copy button operation
To specify the copy source, use the key delegation buttons in the key control
block, and to specify the copy destination, use the key delegation buttons in the
independent key transition control block.
To copy from M/E-1 key 1 to M/E-2 key 2
In the key control block M/E delegation buttons, press [M/E1], turning it on,
then hold down the [KEY1] button, and in the M/E-2 independent key
transition control block, press the [KEY2] button.
Wipe copy button operation
Use the [WIPE] button in the Flexi Pad control block of each M/E bank.
To copy the M/E-1 wipe to the M/E-2 wipe
In the M/E-1 Flexi Pad control block, hold down the [WIPE] button, then press
the [WIPE] button in the M/E-2 Flexi Pad control block.
DME wipe copy button operation
Use the [DME] button in the Flexi Pad control block of each M/E bank.
To copy the M/E-1 DME wipe to the M/E-2 DME wipe
In the M/E-1 Flexi Pad control block, hold down the [DME] button, then press
the [DME] button in the M/E-2 Flexi Pad control block.
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Basic Copy and Swap Operations