Oiverflow text

If you don't have the overflow icon, you likely don't have any extra/overflowing text.

Placing text is simple but can be a bit quirky the first few times you do it.

Normally, you want to flow text into a document's "primary frame," which is defined on the Parent page. Just creating a text frame on a page i a more limited operation and doesn't bring things like automatic text flow, added pages, etc.

• Starting from a fresh document, make sure it's created with "Use primary text frame" checked — and if it's for anything like a book or other print document, you probably want "Facing pages" checked, too.
• In the first document page, click to select the primary text frame that should be there.
• Using the File | Place menu, select your import document. You may need to click with the "loaded" cursor in the first text frame.
• If all goes well, your source doc will flow to as many pages as needed.
  • If it stops on the first page, with that overflow indicator —
    • Hit Ctrl-Z to undo the placement.
    • Use Shift-Click instead... and that should flow the whole import document.

The alternative is to click on the overflow indicator, and click with that loaded cursor in the next page's text frame. That will often complete the flow, but you may have to repeat the action a few times depending on how "clean" the import file is.

Ask away if you hit further snags!

Can you post a screenshot? 

If text can fit in the TextFrame - there won't be an overflow.