Adding TinyMCE custom formats?

Hello all, first time Bricker here. I normally code my own themes, and I often add custom formats to the default TinyMCE editor in Wordpress using this method:
https://codex.wordpress.org/TinyMCE_Custom_Styles#Using_style_formats

The above method does not seem to work in Bricks, I assume because they are using their own TinyMCE customizations. Is there any way to achieve this?

Thanks