* What is it? *
Option to display track numbers in hexadecimal.
* What's useful? *
No need to convert from decimal to hexadecimal when referring to track numbers in pattern effects "3d", etc.
* What are some examples of the behavior you are imagining? *
1. select main menu
2. select Preferences
3. select TimeLine
4. press "Hex. track numbers" button
5. select "Close"
-> The track number in the Pattern Editor is displayed in hexadecimal.
* What is your concern? *
Nothing in particular