/ssod
Set the streaming distance for the streamed object specified
In the game
Usage: /setobjectstreamdistance <StreamObjectNumber> <DistanceInMetres>
Sets the streaming distance for the streamed object to the value specified.
The default value for objects created with the /cso command is 300 metres.
Valid values are between 10 and 599 metres.
The shortcut for this command is: /sosd
What it does
Not explained in detail yet.
Wiki