"Styles" presets change only highlighted text instead of the entire text layer
I frequently combine text with different fonts/sizes/etc in the same layer when composing credits. For instance, one style for the role or crew position, another for the name.
In Premiere, applying a Styles preset to highlighted text changes the entire text layer, incl. unhighlighted text.
PS does this with ease using Character Styles.
If I am in need of a clue, I would appreciate some kind soul educating me about this. I've tried various approaches and I just can't get Premiere to stop changing all the text to a given style when I only want to change the highlighted text.