Insert a Unicode Canonical combining ClassA Unicode canonical combining class is on of the many Unicode properties that you can insert via the Insert Token button on the Create panel.

Every Unicode code point has exactly one value for the Canonical_Combining_Class property. This property is used by text layout algorithms to determine how combining characters should be rendered around the base character.
Originally, the canonical combining class property was defined as being a number between 0 and 255. 0 means the character is not a combining character. Only some of the numbers are actually in use. RegexBuddy lets you select the numbers that are actually assigned to at least one character.
To make the property a little easier to understand, some of the combining classes were later given a name and also an abbreviation. Those that were not can be specified as CCC followed by their number. You can use the Syntax group on the dialog box to choose whether you want to insert the value’s name, abbreviation, or number.