Creating with Flow
Eraser
The Eraser tool is found near the top of the Tool Dock, and allows you to remove entire strokes as you touch them.
You can also use the Correction Tool to erase areas of your drawing, like a traditional eraser.
When selected, it slides out in a similar fashion to the drawing tools. You can toggle which types of tool the eraser will be able to delete.
Clearing the document
To clear the entire document, press and hold on the eraser until the dialogue box appears.