edit the profile band style - band details tab - under labels and ticks pick major or minor station - then click compose label.
click on the field to the right of text contents. click on the the dots button that shows up.
i attached a picture of this dialogue box.
highlight the text in the black window. make changes on the left side in the list. then be sure to hit the blue arrow to move the new settings over to the edit window on the right.
Dan