I can’t confirm this behaviour. I can navigate through the track list right away via arrow up/down keys. Which key commands are assigned to your arrow keys? What OS are you on? Do you use a MIDI Controller?
What exactly do you want to do? There are several options.
What would this feature look like? Maybe PLE can help, there are a number of presets which can be used as a starting point.
There’s a difference between linear/musical timebase and musical mode.
If you are referring to musical timebase then have a look at your preferences, please:
Edit > Preferences > Editing > Default Track Time Type >> musical timebase.