for users to easily add the tel: link, you have answered this in similar questions and have suggested creating an HTML template in JCE.
I would add an icon, so the final link would be something like
<p><a href="tel:+49-7121-200-4019"><span uk-icon="receiver"></span> 07121 200 4019</a></p>
It is easy enough to create as a template and it works in the frontend.
But I would like to have the icon visible inside the JCE editor, because users get confused and think the icons are missing, This is especially true when you have large teams working together.
Can't quite figure out how to add the YOOtheme Icons to styles, as they are not simply a CSS file that can be loaded.