You can erase chart drawings by right-clicking on the chart area itself and selecting an option from the context menu:
Drawings are preserved but hidden until manually unhidden.
Removes all indicators and overlays from the chart.
Select any drawing tool
Hover your mouse over that drawing's white circle
Right click and select
Remove this Drawingfrom the menu.
Right-click the chart area
Show Hidden Drawings
Click the eye-icon in the drawing tools sidebar, adjacent to the y-axis.
Click the Drawing Menu icon above the price chart
To erase all chart drawings on mobile:
1. Shake your device like an Etch A Sketch. Please note this is not supported on all browsers.
2. Rotate your device until it is horizontal (i.e. in landscape mode) and select the
Clear drawing button, found under the Drawing Settings menu.
It's not yet possible to delete individual chart drawings on mobile.