How can we segregate invoice having both po and non-PO match line in invoice approval spreadsheet?

Summary:

How can we segregate invoice having both po and non-PO match line?

Content (please ensure you mask any confidential information):

We need to create both positive and skip rule in each block of invoice approval spreadsheet of PO and non-PO match invoice. But in case invoices are having both the line, which condition to use in spreadsheet? In BPM we used to have negate condition or "where there is no case" condition. How to achieve the same in spreadsheet?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):