Select the Type tool , and then drag to define the width and height of a new text frame. Hold down Shift as you drag to constrain the frame to a square. When you release the mouse button, a text insertion point appears in the frame.

Dragging to create new text frame

Using the Selection tool, click the in port or out port of another text frame, and then click or drag to create another frame.

Use the Place command to place a text file.

Using the Type tool , click inside any empty frame. If the Type Tool Converts Frames To Text Frames option is selected in Type preferences, the empty frame is converted to a text frame.