Most people develop app within their personal spaces. This requires importation of data files/sources. If you develop a lot of apps, you will import many files that can potentially have similar names, which in SaaS all sit in the Datafiles folder for the space. This can be messy in the hub (even though you can filter down to select objects other then data). Also when searching datafiles folder to import data it can get confusing. There should be a way to create data folders within the data files folder, that can be used to group data objects by app or by group. This way the spaces can be tidy.
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