Blending Data in Tableau Question:

After connecting to my three data sources and using a left outer blend via "data blending" instead of "join" I created a table calc which sorts market segments into top n customers.  I now want to take the results of this table calc and overlay them against a second list of customers which is not mutually exclusive but not one to one.  I want to do it all in Tableau without exporting and re-importing.  Is this possible?  Data is confidential so cannot be uploaded.

segment

top five customers

segment

top five customers

ect... n segments

then search within this using a list of customers on a second sheet to see where the customers overlap.

Thanks!