I'm perfectly aware that your button is not attached to a toolbar.
My previous post was to answer your question of where to find the "Green Triangle" i.e. design mode button.
My suggested actions will bring up the Visual basic toolbar, which normally contains the design mode button.
Going in to design mode will then allow you to right click your buttons and access the code behind the button in order to copy it.
But, as I've already stated, if your button is, indeed a Forms button, then the code should automatically follow it accross when you copy and paste the button, and you shouldn't even need to go into design mode for that.