The Fleet__SortBy enum includes various settings.

Table: Fleet__SortBy

Hostnamebooleanyes Whether to sort by the host name.
Systembooleanyes Whether to sort by system.
Versionbooleanyes Whether to sort by version.
Ingestbooleanyes Whether to sort by ingest source.
LastActivitybooleanyes Whether to sort by activity, the last first.
ConfigNamebooleanyes Whether to sort by the configuration name.
CpuAverage5Minbooleanyes Whether to sort by CPU five-minute average.
MemoryMax5Minbooleanyes Whether to sort by memory five-minute maximum.
DiskMax5Minbooleanyes Whether to sort by the disk usage five-minute maximum.
Changebooleanyes Whether to sort by change.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.