Hi,
Technical answer to you question is that yes, you can do this, by assigning the Level = ID property in the information map to these attributes. ID-level attributes are not available for selection criteria in the Select node, but are available for export.
But I wonder why would you want to do that, to remove the ability to select by these attributes? If it has to do with security (campaign managers are not allowed to have a glimpse into the personally identifiable information), then this wouldn't change much. There are still plenty ways for an advanced user to have a glimpse and even extract the data from these attributes, even if he doesn't see them for selection in the Select Node.
If it is a security concern, you should remove this information from the part of the data mart that SAS CI application and users see, process the export files or tables to re-add the PII information somewhere in the background, beyond the scope of SAS CI solution.
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Dmitriy Alergant, Tier One Analytics