You can use the mouse to resize and move the chart area, the plot area, and the legend. Microsoft Graph automatically sizes titles to accommodate their text. You can move titles with the mouse but not resize them.
Click the chart item.
To move a chart item, point to the item, and then drag it to another location.
To resize a chart item, point to a sizing handle. When the mouse pointer changes to a double-headed arrow, drag the sizing handle until the item is the size you want.