I have just discovered MindMup and I need to add a way to apply a class to a span tag the same way it is shown how to change the font or the background color for examples.
<a data-edit="fontName 'Arial Black'"> produces <font face="Arial Black">string</font>
<a data-edit="backColor #xxx"> produces <span style="background-color: rgb(x,x,x);">string</span>
I tried <a data-edit="class myclass"> to get <span class="myclass">string</span> but it does not work!
Where do I learn how to do that?