Ellipse
It represents an ellipse, defined by 4 control points, which constitute the four corners of the rectangle that contains it. To add the ellipse to the chart, simply click on the position on the chart where you want to place it, hold down the mouse button and move to the opposite corner, and finally release the button. After adding the ellipse to the chart, you can move it by clicking on one of the control points of the ellipse itself to select it and then dragging it to the new position while holding down the left mouse button.
Settings
Appearance - Settings related to the drawing mode
Color - Color of the ellipse
Line Style - Ellipse perimeter line drawing style
Line Thickness - Ellipse perimeter line thickness
Area Opacity - Ellipse inner area Opacity
Control Points - Control points of the ellipse
Point 1 - First control point of the ellipse
X - Position relative to the X-axis, expressed as a bar number
Y - Position relative to the Y-axis
Point 2 - Second control point of the ellipse
X - Position relative to the X-axis, expressed as a bar number
Y - Position relative to the Y-axis