@timroes It's great to hear this is being addressed, thanks for the update and for the link to the blog posts for the API changes, I wasn't aware that existed!
On an semi related note, I have opened a new post regarding how to add custom ui drop down boxes and how to pass their values into my search query as filters in a custom visualisation. I haven't been able to find any examples of how to do this within the plugin development documentation. I'd be incredibly greatly if you could take a look at the post to see if you are able to offer any advice/links/code examples to help me achieve this. From what I have read you know the plugin development platform inside out.
Thanks very much for you help 