In Microsoft OneNote, you can easily erase specific ink strokes while handwriting or drawing notes.
Open a page that contains handwritten notes or a drawing, or tap the Draw tab, select a pen, and then use your finger or stylus to write or draw on the page.
On the Draw tab, tap the Eraser tool to the left of the pens, and then carefully move your finger or stylus over any ink strokes you want to erase.
Erasing ink with precision may take a bit of practice. If you make a mistake at any time while erasing ink, tap the Undo arrow near the top left corner of the app to undo your last action, and then try again.
To more quickly erase a large selection of ink strokes, see Cut, copy, delete, or move an ink selection in Microsoft OneNote.
This feature is currently not available when using Microsoft OneNote on iPhone.