Code Used: [idle] or [x] or [z]
These codes do absolutely nothing! They do not affect the print or braille document in any way.
They can therefore be used to mark your position in the document you are working on.
For the more technical:
If you wish, you can add text which will only appear in Coded View, for example:
And our text continues........
Obviously if you wanted to "Find" this you would search for [idle] in your document.
Note that the above Codes will also appear in your braille file, but again they will not appear when it is embossed.