You can split a segment into multiple segments (A/B split) by creating additional segments that use the same query.
1. Define the segments in sequence (using the same query).
2. Run the query to determine the segmentation count.
3. After deciding how many records should be retrieved for each segment, retrieve each segment and specify the count for each segment.
Note: Do not specify a count for the last segment; the last one will return all of the unretrieved records.