Custom configuration for test-styles and tags?

[fabianmu]

I'm looking for a way to add custom-configuration for additional styles.

Ie we're using h3 with two styles and I'd love to be able to use those by having Heading 3 as well as an Heading 3 (alt) option.
Is that something that can be done? Happy to look into myself if I get a hint on where to add this.
Thanks!

[dasmikko]

There is currently no way to add new custom headings or classes to elements. But I can definitely see the potential of the feature!