FIND/REPLACE MAIN OPTIONS
to find/replace text inside the selected area, make first a selection.
down: find/replace text down from the cursor.
up: find/replace text up from the cursor.
all: find/replace over the whole text.
find/replace/replace html boxes: switch between find/replace/replace html modes.
scroll back: return to the view from where the search was started.
undo all: clear all the replacements made during current find/replace session.
To repeat find/replace operation with another options or for another selection, it is enough to change options or selection without closing find/replace window.
"REPLACE HTML" MODE
replace html mode allows one to replace regular expressions in the html source of the book (including both the visible text and invisible tags). For example you can change the chapter titles from the bold style to the italic one using the following options:
find what: <B>(.*)</B>
replace with: <I>$1</I>
Regular expressions replacement is a powerful and flexible technique. However to use it correctly and efficiently one needs to know how to construct regular expressions. The corresponding information can be found for example at http://msdn.microsoft.com  searching for "regular expressions"
RULES OF ASCII INPUT
1. ASCII code input format: integer.
2. A single ASCII code has to be >=0 and <=255.
3. To input a combination of ASCII codes separate single codes by spaces.
    Example of multiple ASCII input (the word ASCII): 65 83 67 73 73