Osm:Help-help.editingFeaturesText/en

To add a point to an existing way, select the way and shift+click at the desired location.

To delete a point, select the point and click the Delete Item button in the bottom right corner or press Delete (or Backspace) on your keyboard.

To delete a way, select the way and click the Delete Item button in the bottom right corner or press shift+Delete (or shift+Backspace) on your keyboard.

To move a point, click and drag the point.

To move a way, click and drag the entire feature. Hint: Grab a segment where you won't accidentally move a node.

To extend a way, click on one of the end points of the way. Then continue drawing as usual.

To add a new way extending from an existing way, shift+click on one of the end points of the way. Then continue drawing as usual.