Hi @Jakob Hippe , thank you for submitting a question. To see the available Word JavaScript APIs, please visit our documentation: https://learn.microsoft.com/office/dev/add-ins/word/
If you have a request for a new feature, we recommend submitting via Microsoft 365 Developer Platform Ideas. We use Microsoft 365 Developer Platform Ideas to prioritize community requests for additions to the product. If the community upvotes your request, it's more likely to be added to the add-ins platform.
Cheers,
Alison