Somebody on another forum (Paul) has managed to work out the code needed but does anybody know how do you add all three sections using WD17?
That would be a question for the Xara support forums as I doubt anyone here uses wysiwyg editors any more. Most of the coders here do it from scratch so I’m not sure you will get the answer you need here unfortunately.
Usually there will be some sort of mechanism to add custom code and html etc (as in wordpress) but it usually involves a bit of effort. You will need to be able to add the script and the required css and be able to target the button via its id or class.
I had a quick link at the documentation but it doesn’t even mention custom code