Turning a text "string" into a text "block" in Photoshop CS6?

If I select the Type tool, click somewhere in my composition and type in some text, it appears that I cannot resize the area the text occupies without resizing the text itself.

However, if I click and drag, to create a text block instead, I can use the corner handles of this block afterwards to reposition and resize this block, and have the text inside reflow automatically.

Is there a way to go from the first to the second? ie. first click, type in some text, then resize it as though it was a block?