Android : How to offer multiple sharing intents with Easy Share Action

I've been working through Adding an Easy Share Action. This works fine for a particular intent type, for instance shareIntent.setType("text/plain"). Now I want to add more share options: Facebook, Google+, Twitter, Copy Text(!).

How do I add these? My first thought was intent merging, by adding intents through the Intent.EXTRA_INITIAL_INTENTS option. What's the best approach here? Also can I get the action copy text in this way anyway?