You can use Schemas in the Developer area to download and upload schemas for your project configuration and page folder configurations.
Click Developer on the dashboard:
Then click Schemas:
Once open, you'll see the 2 schema types. To download or upload a schema, click the corresponding icon on the right of the configuration name:
When you download a schema, you can see the current configuration, which you can then adjust and upload a replacement file.
Updated 3 months ago