How do you activate the Curve Tool in the latest version of Blender? I have seen a tutorial on using a plugin for Curves in Blender.
Called Curve Tool.
Doesn't seem to work in Blender 2.74.
What is the trick?

I want to "loft" between curves.
I think that you have to be in Object Mode to be able to use this. Then, in the add menu the option to add curves will appear.