4.3. Back on the 'Edit Study' page, a new row has appeared in the 'Genomic Data Sources' table which corresponds to the new data source we just added. Our next step is to map the samples in this source to the subjects in our annotation source. To begin, click on the 'Map Samples' button under the 'Action' column at the right of the table.
The newly added row (highlighted in red) in the Genomic Data Sources table corresponds to the new genomic data source we added in step 4.3. Click on the 'Map Samples' button (highlighted in blue) to map the samples to subjects from the annotation source we added in steps 2.0 through 2.9.
