you can also ctrl+select as long as you don't do that to over 200 protections at the same time.
but it's probably smarter to edit your CSV in Excel and add a calculated column that creates an API command.
In this example let's say you're at line 4 and you put protection name at column A, profile name at column C and desired new action at column B:
=CONCATENATE("set threat-protection name \""",A4,"\"" overrides.add.1.profile \""",C4,"\"" overrides.1.add.action ",B4)
the calculated API call in this cell, and the other cells below it, can then be copied and pasted into the SmartConsole command-line window.
what do you think?