Remove table name prefix from legend in Dashboard line chart

[edoardogorla]

Hi! How could I remove the table name from the legend? I’m using a line chart to show the trends over time and I’m grouping the total costs by type (“Hourly salary” for example) and cost type (“Total Absencecost” for example), but the table name “Poc cost” appears in the legend and I’m not able to remove it.