Adobe InDesign - Manual (Page 243)

Adding existing frame to thread
3. Click inside the second frame to thread it to the first.
When you thread a frame grid to a plain text frame or to another frame grid with different grid settings, the text frame of the threaded frame is
redefined to match the settings of the frame grid threaded from
You can add automatic “continued on” or “continued from” jump lines that track threaded stories as they jump from frame to frame. (See Add
automatic page numbers for story jumps .)
Add a frame inside a sequence of threaded frames
1. Using the Selection tool, click the out port at the point in the story where you want to add a frame. When you release the mouse button, a
loaded text icon appears.
2. Drag to create a new frame, or select a different text frame. InDesign threads the frame into the series of linked frames containing the story.
Adding frame inside a thread (top) and result (bottom)
Unthread text frames
When you unthread a text frame, you break the connection between the frame and all subsequent frames in the thread. Any text that previously
appeared in the frames becomes overset text (no text is deleted). All subsequent frames are empty.
Using the Selection tool, do one of the following:
Double-click an in port or out port to break the connection between frames.
238