Hi Steven,
I spoke with the WPML developers. Their reply was:
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Hi Greg, he will need to work directly with our developers to get these answers. To do that, he should join our Go Global Program (https://wpml.org/documentation/theme-compatibility/go-global-program/).
Feel free to forward this to him and have him fill out that form so we can start working together. Once this form is filled out, our developers will get in touch and then they can answer his questions.
Please let me know if you need any further assistance and I will be happy to help.
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Does this sound like something you are able to do soon? Or are you already any closer to WPML compatibility?
It would be great to get your plugin working with WPML, it seems a real shame because I can see people (myself included) have been asking about it for 3 years, looking at support queries for “WPML” back to 2014…
Thanks and best wishes,
Greg