I can only strongly agree - Webflow needs to get the basic right, which are not always creating new combo classes, allowing changes of the default css classes of a page with the editor, and if an element has more than one class applied: let us choose which class we want to modify ! (atm one would need to delete all the other classes or adding a new div with only that class to modify the base class)
And li, nth and more advanced css selectors would also be great.