Integrations
Spoon Integration
Spoon is another popular Craft CMS plugin that lets you override the default matrix field buttons and separate them into categories and groups. Matrix Field Preview integrates with Spoon so that both plugins can work side by side.
Configuration
In order to ensure both plugins work alongside each other, make sure that you disable the "take over" feature of Matrix Field Preview for any matrix fields that have Spoon enabled.
This means that your matrix field's buttons will continue to be powered by Spoon, but there will be a preview button alongside to allow you to launch the Matrix Field Preview modal.