On the brush toolbar, choose the scissor tool . After tapping it, you are now able to make a selection around the area and edit it.
- Rotate or adjust the size of the selected area by tapping and dragging its four corners.
- Move the selected area by tapping and dragging it.
- "Cut" or "Copy" the selected area.
- Move the selected area to where you want to paste, and choose between "Rubbing" and "Paste" after selecting Cut or Copy. Paste means pasting the entire area, while Rubbing gives a more sketch-like texture.
When you finish, tap "X" to exit the tool.