Question: How to save all result rows from multiple result pages in GUI at once to a single CSV file?
Answer: Results that are spread across multiple pages can't be saved at once.
All the "tabs" can be exported at once, but not several result pages.
Using Results Reporter would be the recommended solution to achieve this.
As a work around, we can increase the number of result rows in a single page (FAQ11859) and then export them to a CSV file all together.