There's another option that actually exists in the template specifically for this already.
If you create an array called 'b.ga_events' in an extension scoped to the GUA tag in the following format:
[{eventCategory:"google event category here", eventAction:"google event action here",eventLabel:"google event label here",eventValue:"integer only valuie here},{eventCategory:"google event category here", eventAction:"google event action here",eventLabel:"google event label here",eventValue:"integer only valuie here}]
It will actually fire multiple events whenever this array of objects is defined. It's kind of advanced though and requires all four data points for each 'event object' you want to fire in the array, so if you run into issues using it or need customizations, definitely contact your AM.