Table settings define the data columns that are displayed and the data columns that are not displayed (hidden) for a called variant in the Variants table in the Mito Alignment viewer. By default, all available data columns are displayed for a called variant, and the data is categorized as one of the following: General, Coverage, Coverage Percent, Score, or Modification. When you open a sample for an mtDNA project in the Mito Alignment viewer, the table settings that were in place at the time that the project was saved determine the data columns that are displayed in the Variants table, but you can always edit these settings to better suit your working requirements. See To specify the table settings for an mtDNA project.