Sony MVS-8000 User Manual page 225

For the method of obtaining an install key, contact your Sony representative.
To obtain a key, you may be required to submit the unique device ID of the
switcher you are using. You can check the unique device ID in the Install menu
of the switcher.
For details of the operation, see "Installation and Device Setup (Install/Unit
Config Menu)" in Chapter 16 (Volume 2).
Assigning main and/or sub to switcher banks
For Multi Program 2 operations, a single switcher bank may be shared, and
switched between main and sub, or two separate switcher banks may be used,
each dedicated to main or sub.
Example 1: Assigning M/E-1 main and sub to a single switcher bank, and
Example 2: Assigning separate switcher banks as "M/E-1 main dedicated" and
Video creation operations in Multi Program 2 mode
For each of main and sub, there are differences from the operations in standard
mode.
224
Multi Program 2
switching between them
Used switched between M/E-1 main and sub
"M/E-1 sub dedicated"
Used for M/E-1 main operations
Used for M/E-1 sub operations