To save an Integrated Lesson, click File in the top menu, then click Save As.
The Save As dialog will open. There are two required fields that need to be filled: Lesson Name and Lesson Description. Once these two fields are filled, the Save button will become enabled.
If you wish, you can also enter text in the Keywords field, select an option in the Grade Level drop down menu, and select which folder you want to save the lesson to (by default My Lessons is selected).