I noticed by clicking the “i” button on the sidebar of a table, you get a “Dataset Information” popup that shows a name, source, import date, and description for the dataset.
Is this information (in particular, the description field) accessible/modifiable through the data interactive plugin API? If so, how? I noticed that data contexts have a description field (documented as currently unused), but I checked and this appears to be separate from what is displayed in the “i” menu.
The description property in the DataContext can be considered to be decremented. The metadata property includes, as you note, a description property, which is visible in the “info” menu in the Case Table. You can retrieve the metadata through the API. You can create a metadata object when you create a data context through the API. You cannot at this time update it through the API.