If you are looking specifically for how "storylines" function in this version, here are the key actions:

The 10.3 era marked a turning point for Final Cut Pro X, moving it closer to a professional "standard" while doubling down on its unique trackless design.

: This version was optimized for the first MacBook Pros with the Touch Bar , offering a color-coded overview of the entire timeline right on the keyboard. Specific Improvements in 10.3.2

: Fixed issues where audio files would occasionally drop out or not play back correctly during editing.

: Improved the reliability of updating older libraries and projects to the new 10.3 format.

: For the first time, users could save custom window layouts for different tasks like color grading or organizing. It also added dedicated buttons to hide or reveal the browser, timeline, and inspector instantly.