Reordering Modules
There are two ways to do reorganize the order in which modules appear on a lens. First of all, if you're editing a lens and you click on Reorder Modules, you'll notice that the modules will close so you just see the module title bar. You can now drag and drop the modules in whatever order you prefer. As you drag a module, others will move to make room for you to drop it in a new location.
You can also rearrange modules using the orange up and down arrows in a module's title bar. Clicking on the up arrow once moves a module up one position and so forth. No module can be moved above the introduction module, and the last module can't be moved any lower.
