In eclipse, how do I add step continue and pause buttons to the toolbar of the java perspective?

In eclipse, how do I add the debugging buttons: step, continue, and pause buttons to the toolbar of the java perspective? When I right click to customize perspective I don't see where I could add those buttons.

CLARIFICATION: I'd like to add these buttons directly to my java perspective if I can, I don't like switching back and forth between java and debug perspectives.