Did you know you can easily swap Hourline / Long Form Arrow Key Navigation?
It's configured in the Toolbox > Settings > Miscellaneous and you can select one of the two options:
- Alt Key Controls Long Form
- Alt Key Controls Hourline
For one of the timelines it is possible to use the keyboard arrow keys, and for the other timeline the arrow keys + the "Alt" key to trigger the navigation. Find out what works best for you!