To make Find and Replace accept, and operate on, binary characters or multiple lines, select Binary and Multiple Lines from the Options Menu. Subsequently, two buttons like the one above appear, one to the right of the Find button and entry space, and one to the right of the Replace button and entry space. Click either button to open a Binary & Multiple Lines window in which to enter a binary expression or multiple lines. One button works for Find, the other for Replace.
Binary Lines contain binary characters, which are characters that exist in some computer files but do not appear on your keyboard, for example, control characters, “\0”, “\n”, and so forth. (If you do not know what binary characters are, you will probably never need to search for them.) Here are two examples of a binary line, as represented in a Find or Replace expression:
\tWe hunted the whole thing.\r\n\tThe captain had one leg\x00
\xFA\xBC\x9A\x10
Multiple Lines are a set of consecutive lines. The multiple lines you search for are usually ASCII text with line breaks, but may be lines that contain binary characters. Here is an example of multiple lines with ASCII text:
I have been to sea to hunt the white whale.
We hunted the whole thing.
The captain had one leg.