Ability to Add Comments To Columns of Published Datasets, Snapshots and Views

When publishing a dataset, snapshot or view I can enter a comment for the overall artifact but I would like to be able to add comments for each column to make it easier on a user who is using Decision Point to pull data. Most RDBMS have comment metadata available and if this metadata were able to be automatically transferred to TIC that would be nice too. Another nice feature would be able to consume this kind of metadata from a data model.