Just to set your expectations I'm fairly new to developing lightning components.
The reason why I'm asking is I want to add additional functionality like a CSS class selection for a list so that an admin can copy/paste content directly on the content editors input box and set a style variant for that instance.
I've already tried creating a custom component, added a design attribute for selecting CSS classes that updates the component's inline CSS class. I've tried using
To better explain what's my desired output, I have an illustration below.