add_graphs.php: "select all" data query rows?

I use the CLI to automate adding new devices and graphs. When I use the 
normal web interface to add new data query graphs, I can add graphs for 
*all* data query rows with the "select all" checkbox. Can I accomplish 
the same with the CLI? When I omit the "--snmp-field=..." or 
"--snmp-value=..." options, add_graphs.php complains:

> ERROR: For graph-type of 'ds' you must supply more options

I am adding graphs for a "wireless station" data query (SSID, signal 
strength, etc.) and for each of our devices there is at most one row. It 
is inconvenient to have to correctly specify the value of an input 
field, to select this row (and so to have to maintain scripts with 
correct values)

I just want to "select all" rows, from the CLI

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