In your Contracts, some functionality has been built in to select or create clauses (pre-set options will vary depending on the form).
Clicking on "Select or Create Clauses" opens another window to select pre-set clauses, add in "My clauses", "Standard Clauses" or add in a "Blank Clause."
Clauses selected or added appear in your document to edit or delete as necessary.
To edit - select "Edit" to open the clause.

Note: The Special Clauses will appear as an annexure within the contract.