I have installed the ADT bundle for 32 bit. Using Ubuntu 12.04

The instructions said that all I have to do is run the "Eclipse" executable inside the bundle folders. It opens an instance of Eclipse Indigo(? looks different but uses the same launcher icon) and it works fine. However, when I run Eclipse Indigo (previously installed) I don't get the option to make Android apps or Change into perspectives that looked like in ADT bundle.

I don't want to add another icon to my launcher. So I'm asking if I can and how to run the ADT bundle inside the Eclipse Indigo. Or at least, make and test Android apps inside Eclipse indigo.