Pipe sections:
- Pipe sections allow multiple primitives to run simultaneously.
  
  PIPE ON Starts a pipe section.
  
  PIPE OFF Ends a pipe section.
- A pipe section is so named because data pipes can be used within that section.
  - (Data pipes will be discussed shortly.)
- When the pipe is done running, the macro will continue executing at the line after the PIPE OFF.
- Example of a pipe section:
  - ```
  STARTMACRO
      ...
      PIPE ON
          PANEL/SETUP
          WAVEFORM _wave ...
          FFT _wave _waveb ...
          PLOT _waveb
      PIPE OFF
      ...
  ENDMACRO
```
- In the above pipe section PANEL, WAVEFORM, FFT, and PLOT all run in parallel and can share data.
  - Each command has its own thread.
  - (The names starting with an underscore indicate data pipes -- more on this later.)

X-Midas Users Take Note:
X-Midas has both `PIPE` and `XPIPE` to differentiate between non-graphical and graphical pipes. NeXtMidas pipes can do both without modifying the macro.