The buttons to the right of the sample name (highlighted in orange) in the Mapping Editor allows you to switch a zone’s sample for the next sample in the folder that it is located in.

Pretty good for exchanging drum sounds, etc.
The buttons to the right of the sample name (highlighted in orange) in the Mapping Editor allows you to switch a zone’s sample for the next sample in the folder that it is located in.

Pretty good for exchanging drum sounds, etc.