Radio: Tuning to the next Frequency

With all radio stations automatically preloaded, when I hit the radio arrow button, the unit simply moves to the next preloaded station. But what if I wanted something in between? Perhaps an undiscovered weak station. On every radio I have had, I can manually move to the next frequency. Example: I am on AM 600, then move to 610, then to 620, then to 630 etc. Same scenario on FM. How does one go to the next frequency?
Note: I find this feature useful when I am driving a long distance and am in the middle of nowhere. In that situation I don’t know what’s out there and find surfing the band fun, all the while killing time.

Select Tune, and then there is options for fine tune
Radio Tune change

I guess I should have said it’s a 2024. There is no Tune button or Fine Tune feature. Only forward and back buttons which only allow you to move to the next found channel/frequency.