Flat Top/Bottom
It represents a channel made up of 2 lines, one of which is horizontal, which delimit a work area. To add the channel to the graph, simply click on the position on the graph where you want to place it, hold down the mouse button and move towards the second control point that determines the ends of the first line, and release the button. Now moving the mouse vertically determines the position of the second line, which will always be horizontal. A further click with the left mouse button fixes the position of the second line and completes the channel insertion procedure. After adding the channel to the graph, you can modify it by clicking on one of the control points 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 lines
Line Style - Lines drawing style
Line Thickness - Thickness of the lines
Area Opacity - Opacity of the area enclosed by the lines
Control Points - Control points of the channel
Point 1 - First control point of the channel
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 channel
X - Position relative to the X-axis, expressed as a bar number
Y - Position relative to the Y-axis
Point 3 - Third control point of the channel
X - Position relative to the X-axis, expressed as a bar number
Y - Position relative to the Y-axis
Point 4 - Fourth control point of the channel
X - Position relative to the X-axis, expressed as a bar number
Y - Position relative to the Y-axis