Step 1: Select the button for "New Document" in the upper left part of the window.
Step 2: Choose the type of document you want to use.
The large top choice is a Blank Document.
The four lower choices are templates for you to work with and change. (The Getting Started template also offers a lot of info on how to use the FastFig tools)
Step 3: Start working with your new document.
Step 4: Your new document will be untitled in the file bar on the left. Click on the text to give it a name. The created-on will remain. (Though you can change the date on the actual document at any time)