Define tables as staging or reporting

Not all tables that are created in a Spotfire analysis are there for reporting purposes. Some tables are only for transforming data or loading data. The content of these tables is in the end, when all the loading, calculating and transforming is done, no longer needed. If it could be defined at data table level if the data that is inside the table is for reporting or only for transforming and/or loading, then these tables could be made empty after the content is no longer useful. This would mean less data in memory and less data in a file if the data is stored in memory.One could also use this for security reasons or the remove data that is confidential when it is no longer needed in the analysis.