OpenLayers 3 capturing various click events

ah ok dblclick is the answer

// set mode to current mode of double clicked feature                       
map.on('dblclick', function(evt) {
  console.log('doubled');
  var feature = map.forEachFeatureAtPixel(evt.pixel,
    function(feature, layer) {
      // do stuff here
    });
});                                                                    

and evt.originalEvent.altKey, evt.originalEvent.ctrlKey, evt.originalEvent.metaKey, evt.originalEvent.shitKey are all availabe within the handler!

Get clicked XY coordinates in ol3

map.on('click', function(evt) {
var coordinates = evt.coordinate;
alert(coordinates);
});