Paragraph Pattern Filter is to limit the replace scope to the paragraphs matching user specified pattern.
User need to fill the pattern follow rule of Syntax of Search Pattern.
To use Paragraph Pattern Filter, user must select one of following Replace type:
1. Replace Unit is "Chars" or "Word or "Line", Replace Scope is "Paragraph"
2. Replace Unit is "Chars" or "Word", Replace Scope is "Line of Paragraph"