@Richard Teunen
When agent/user click on 'Create an article' in JSD, it'll take them to 'Create page' window where they can choose one of the templates.
You can create your own template with the fields so that they can create new articles using that template.
Below documents help you understand how to setup templates.
Save time, stand out: 4 new templates for Confluence Cloud
Blueprints and User Created Templates
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