Edit Legacy Tables, Create Lightning Tables
Where: This change applies to Lightning Experience in Professional, Enterprise, Performance, Unlimited, and Developer editions.
Why: Lightning Experience dashboards have featured two tables for several releases, the legacy table and the Lightning table. Feature-wise, the legacy table is identical to the Salesforce Classic table dashboard component. The Lightning table includes many features unavailable in Salesforce Classic (up to 10 columns, up to 200 records, groups, and measure columns). Lightning tables are another way in which dashboards are better in Lightning.