Possibility of adding extra attributes to the pop up dialog

Problem/Motivation

I am able to add all sorts of classes all over the place via the UI with the module and that works well but I also would like to be able to add some other (not CSS) attributes the markup too.

Specifically I want to be able to add data-dialog-options to the overall dialog itself so that it fades in and out like this...

data-dialog-options="{"width":1200, "dialogClass": "custom-class-modal", "show": "fadeIn", "hide": "fadeOut"}"

Would that be possible?