There are several solutions you can use to this problem and the one you choose depends on what you are most comfortable with. Word's default ellipsis character does not break over two lines, but she cannot use it as it has no spaces between the dots. Mary Anne likes to keep ellipses all on one line, but because of the spaces, Word will spread them over two lines. If an entire sentence has been left out of the quotation, there will be four dots, each separated by a space, but with no space before the fourth.
Most academic styles dictate an ellipsis of three dots, each separated by a space, with a space before and a space after the third. In the academic documents on which she works, when part of a quotation is left out, an ellipsis must be inserted.
Mary Anne works as an academic editor, which means she must conform to specific, rigorous styles for formatting.