Click the Clone Stamp tool to create a new Clone Stamp filter layer at the top of your layer stack. You can also add a Clone Stamp filter by using the Add a layer button in the Layers panel.
Creating a Clone Stamp filter layer automatically opens the 2D view in the Viewport. A Toolbar appears at the top of the 2D view when the Clone Stamp layer is selected.

To start using the Clone Stamp tool, click and drag over the problematic area in the 2D view. The material will begin to automatically update based on the source. Areas where you use the Clone Stamp tool are highlighted.

The toolbar displays the following shortcuts:
- Brush Color: Black or White

- Brush Size: Controls how big the stamps inside a brushstroke will be

Source Selection
To define the area to duplicate, you can drag the source handle from the center of the 2D view, or press Alt + Click. Note that using Alt + Click will reset any painting.
Shortcuts
Action | Windows + Linux | MacOs |
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Increase Brush Size | ] or Ctrl + Mouse Wheel | ] or Cmd + Mouse Wheel |
Decrease Brush Size | [ or Ctrl + Mouse Wheel | [ or Cmd + Mouse Wheel |
Set the source | Alt + Mouse Left | Alt + Mouse Left |