Logic Pro X 10.3.3. - No Track Alternatives

Hi, I purchased Logic Pro X 10.3.3 yesterday and apparently I don't have the Track Alternatives feature. I followed several tutorials, but I just don't have neither the Track>"Show Track Alternatives" nor the Track Header Components>"Track Alternative" options. They're just not on the menus where they're supposed to be. I'm really upset as I was really looking forward to this feature. Did anyone have this problem or knows how to solve it? Thanks a lot!