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• Name the attribute 5-AZA Dose
• Click Add to add 5-AZA Dose as a project-specific, categorical attribute (Figure 3)

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• Name the first New category 0uM
• Click Add
• Repeat for two additional categories, 5uM and 10uMClick Close to finish creating the attribute  (Figure 4)
  
  

• Click Back to sample management table data tab 

The data table now includes an Attribute column for 5-AZA Dose (Figure 5). Next, we need to assign samples attribute categories for Treatment.

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The option to edit the Treatment field for each sample will appear as a drop-down menu (Figure 6).

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The data table will now show each a 5-AZA Dose attribute for each sample. 

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