It should.
Set it to what you have above and press the Save button.
The resulting settings file will look like this:
{
"class": "binary",
"project": "C:\\Your\\Project\\Folder",
"output": "C:\\Your\\Export\\Folder",
"extension": ".skel",
"nonessential": false,
... other things
}
Then use that settings file to export your project through the command line.
