You can insert a signature page using the attachment column, you can replace sections of your document with an entire document. This allows you to insert a placeholder like "[insert signature pages]" in your document, then swap it with the complete set of signature pages.

Note: It is important to be aware that the attachment column is designed exclusively for embedding Word documents within another Word document. Attempting to embed a PDF into a Word document using this method may not yield the expected results and could lead to failure in some instances. For such tasks, utilizing Adobe is recommended as it is better equipped to handle PDF integrations.