Everything Erasing Using Drawing Guides By default, drawing guides have no effect when using the Eraser tool. However, if needed, you can make the Eraser tool use your selected guide. How to erase using a Drawing Guide In the Guides view, activate the Enable Guide with Eraser button. The Eraser tool will now work with the currently selected guide, just like the Brush , Pencil , Stroke and Line tools. Start erasing. NOTE With the Enable Guide with Eraser option, you can also edit your guide's horizon line and vanishing points using the Eraser tool.