Fade In Pro
When I switched from Windows to Linux, I found software to replace almost everything I had been doing in Windows. Most of the software I needed was in the repos, although I did pay for a couple commercial programs.
The most difficult program to replace was Final Draft, a commercial program for writing screenplays. Final Draft is available for Windows and Macs, but not for Linux. It also does not run in Wine or CrossOver Office.
At first, I was able to get by with Celtx, a free screenplay program that is available for Windows, Mac and Linux. But a nasty bug crept into the Linux version, making it painful to enter character names for dialogue. Although the developer acknowledged the issue two years ago, and several new versions have been released since then, the bug is still there.
A new solution now is available. Fade In Professional Screenwriting Software is a powerful application for writing screenplays, and it includes tools for organizing and navigating the script, as well as tools for managing revisions and rewrites.