Font Size Tool in Text Block

Hello,

Fantastic theme I am just requiring an answer to a question on behalf of the clients that use the websites we build using Enfold.

Most themes we have used in the past have the option within the editor section where someone can highlight a line of text and adjust the font size on that individual line. A lot of our clients have no knowledge of css and html and are wanting to adjust a line of text, within a blog post for example, to be a particular font size and they can’t without asking us where we have to manually go in an add a span or class to that text line.

Is there a way we can add a tool that allows for this ability?

I know that TinyMCE for example has this ability: http://cdn.wpbeginner.com/wp-content/uploads/2012/09/wp-font-size-button.png