Download Data Catalog
Open the Data Catalog drop-down and click Download.
The model will be downloaded as a JSON file. Each table and column will feature a "type", "uniqueName", "displayName", and "description" field. In the description field, you can add descriptions to each table and column as needed. Be sure to save any changes.
Upload Data Catalog
To upload the data catalog back into Pyramid, open the Data Catalog drop-down and click Upload. Find and select the updated JSON file. Once it's been uploaded, you'll see the new table and column descriptions in Pyramid.
Here we see the description for the customerProfile table:
And here we see the description for the Marital status column: