Help required for Plugin development

[buntha Choudhary]

I don't know about Eclipse Plugin development but I to learn .
As per my requirement , I would like to add a new submenu named "My Menu" in eclipse>help menu.
On Clicking in this submenu , a popup window should open like Android Plugin opens a Android Virtual m/c window or any other plugin.

Now I red something about RCP and plugin development. So exactly what should be the step I need to follow for achieving the desired result.