How to configure chart area in Visualizer
1 Navigate to Visualizer > Chart Library.
2 Select the chart to be modified and click to edit it.
3 Switch to the Settings tab.
4 Open the Chart Size & Placement accordion.
5 Expand the Placement accordion.
6 Insert the percentages for the Left And Top Margins (how far the chart should be from the left and right edges of the area).

7 The Width and Height of Chart Area option define the width and height of the chart area.
8 Click on the Save Chart button to make changes!