How do I use .SRT file in FCP to get subtitles

If you just want to import all your SRT subtitles to Final Cut Pro 7/X, you don’t need to buy a full license of Finalsub. Just FinalSRT is enough. FinalSRT Website

You can buy FinalSRT on Mac App Store. It’s only US$9.99.

FinalSRT

Import SRT subtitles to Final Cut Pro 7/X as Titles

Mac App Store 

FinalSRT Website

FinalSRT Website-bring SRT subtitles to Final Cut Pro 7/X.