Why can't I get to the MTR menu as showed in the manual of my Roland VM3100...

Why can't I get to the MTR menu as showed in the manual of my Roland VM3100 / VM3100pro mixer?

The MTR is used for arming tracks on an Adat or VS-series Roland HD recorder. This menu is not available unless the RBUS of the VM3100 mixer is hooked to either a DIFAT (RBUS to ADAT converter box) or to a Roland VS-series recorder.

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