This menu item is used with the NN-XT sampler. It lets you easily copy parameter settings from one zone to any number of other zones. Proceed as follows:
1. Select all the zones you want to involve in the operation.
By this we mean the zone with the settings you wish to copy, and the zone(s) to which you want to copy the settings.
2. Make sure the zone that contains the settings you want to copy has edit focus by clicking on it.
3. Select "Copy Parameters to Selected Zones".
All the selected zones will now get the exact same parameter settings.
Observe that this only applies to the synth parameters (LFOs, envelopes etc.). Sample parameters (root key, velocity range etc.) can not be copied.