To automatically remove duplicate words:
Enter (<*>) (\1) in the “Find what” box.
Then; enter \1 in the “Replace with” box.
Then;
Click the “Replace All” button.
To automatically remove paragraphs:
Enter (*^13)(\1)@ in the “Find what” box.
Then; enter \1 in the “Replace with” box.
Then;
Click the “Replace All” button