How do you select the "new paragraph" special mark to replace with "new paragraph" and "indent" special marks?

When using the Find & Replace function, how do you select special formatting marks such as “new paragraph” and “indent”?

For example, you would need this when pasting over a large amount of text with multiple paragraphs that do not carry over indentations.

There is no such thing as “indent” mark. Indents are properties of paragraphs (and, thus, paragraph styles). Create and modify paragraph style(s) to your needs.