search.htm
ExcerptSize {length}
Defines excerpt padding length for each chunk. Actual chunk length can be up to ExcerptPadding * 2 + length of word. This command intended to be used with CachedCopy feature, but can work with "body" section also.
ExcerptPadding 64
DateFormat, ExcerptSize, ExcerptStopword, HlBeg, HlEnd, Locale.