When you click on Report Top Failing Paths, it runs:
qsta_utility::generate_top_failures_per_clock "Top Failing Paths" 200
Change the number, you'll get more.
Personally, I'm not a big fan of this command as it mixes everything up. I run Report All Summaries or Report Setup Summaries only if I'm only interested in setup failures. That breaks out each domain by slack and Total Negative Slack. You can right-click on any of these and do Report Timing. There is a LOT more control at this point. For example, you could increase the number to 20000, but have a maximum slack limit of 0, so it only reports failing paths. I often click Pairs Only, so I only get the worst path between each pair, or even -nworst 1, which shows one path per destination. This helps identify trends. I may use the From Clock to only find paths from a specific domain. You can dump it to a text file. You can give the report a name that makes sense. You can add -false_path to the end to only show false paths in that domain. And in the end, you can save it to a Tcl file that can be accessed from the Scripts pull-down menu.
