The third parameter you speak of in the QUERY function, is meant to control the headers. If set to be -1, then the Google Spreadsheet will depict its own choice in choosing headers, based on the data available:

I've used the following data set:

If set to be 0, then no header will be used, leaving:

If set to be 1, then the first row will be used, leaving:

If set to be 2 or -1 or left blank, then the first two rows will be used, leaving:

Using the headers, the way you did in your example, isn't possible. The closest thing would the usage of the QUERYfunction, described in this answer. There a quasi column name is used.

Best is to make a custom menu, via Google Apps Script. This will allow you activate things by row.

Code

function onOpen() {
  var ss = SpreadsheetApp.getActive();
  var items = [{name: 'Magic', functionName: 'myMagic'}];
  ss.addMenu('Do Stuff', items);
}

function myMagic() {
  var ss = SpreadsheetApp.getActive(), aRow = ss.getActiveCell().getRow();
  var nDate = Utilities.formatDate(new Date(), "GMT-1", "dd-MM-yyyy");
  ss.getRange("B"+aRow).setValue(nDate);
}

Your magic needs to happen in the myMagic function.

Example

I've prepared an example file for you: button vs. menu
You can run the code and see it in the file itself.