Why it should be so difficult for an Indesign noob to find this information I don’t know. Let me share a tip I wish had been more apparent for me earlier on.
Lets Auto Flow some text.
When you have your cursor loaded with text using the “Place” command found under the file menu. Go to the first page of your document (or which ever page you want to start flowing text) and hover over the margin. Wait until you see the arrow go white and then click “Alt+Shift” (Option+Shift MAC).
Bam you now have auto-flowed text.