set false path if over some logic levels

I'm sure there are ways to script it, which if the design is changing, you might want to do. If it's a one-time process, I would just run something like:

report_timing -setup -npaths 5000 -detail pairs_only -panel_name "long list"

(You can filter the clock or node names with -from/-to or -from_clock/-to_clock)

You now have a long list at the top. You could copy and paste that into .xls which is pre-filled with set_false_path and -from and -to columns. Then just paste these columns of names in between. Then just copy the whole thing into your .sdc.

Note that you can just Reset Design in TimeQuest. It will then read in your new .sdc, and when you run report_timing it will show the analysis with the new constraints, so you can iteratively find them and make sure you get them all, without re-fitting each time.

I'm not a fan of having thousands of individual set_false_path commands, so if you can do any wildcarding, that might help run-times.