An array of elements in the BUFFER or BUFLIST storage areas contains the information about the list entries to be moved. Each array element identifies the entry to be moved and may also designate version number comparison and key assignment information. The array elements are mapped by the IXLYMELI macro and are indexed with the first element starting at offset zero in the BUFFER or BUFLIST area. Identify the index of the first element to be processed with FIRSTELEM and the index of the last element with LASTELEM.

Each IXLYMELI element also contains the target list to which the list entry is to be moved, the direction in which the entry is to be positioned on the list or sublist, and whether the list limit set for the target list should be enforced or ignored.