Duplicate Layer

`Ctrl` + `Shift` + `D`

All hotkeys for 3D Coat (Windows)

File Menu Open File	`Ctrl` + `O`
File Menu Save File	`Ctrl` + `S`
File Menu Save File As	`Ctrl` + `Alt` + `S`
File Menu Save Incrementally	`Ctrl` + `Shift` + `S`
File Menu Import Model	`Ctrl` + `Shift` + `O`
File Menu Import Image Plane	`Ctrl` + `Shift` + `M`
File Menu
File Menu
Edit Menu Undo	`Ctrl` + `Z`
Edit Menu Redo	`Ctrl` + `Y`
Edit Menu Edit All Layers in external Editor	`Ctrl` + `P`
Edit Menu Edit Projection in External Editor	`Ctrl` + `Alt` + `P`
Edit Menu Offset tool	`Ctrl` + `Shift` + `F`
View Menu OrthoProjection	`NumPad 5`
View Menu View relief only	`1`
View Menu View unshaded model	`2`
View Menu View only specular	`3`
View Menu View wireframe	`4`
View Menu View shaded model	`5`
View Menu View low-poly model	`6`
View Menu View low shaded model	`7`
View Menu Show 2D Grid	`Ctrl` + `'`
View Menu
Layers Operations Add New Layer	`Ctrl` + `Shift` + `N`
Layers Operations Delete Layer	`Ctrl` + `Shift` + `Del`
Layers Operations Erase Unfrozen	`Del`
Layers Operations Fill Unfrozen	`Insert`
Layers Operations Fill by mask	`Ctrl` + `Insert`
Layers Operations Duplicate Layer	`Ctrl` + `Shift` + `D`
Layers Operations Merge Visible layers	`Ctrl` + `Shift` + `E`
Layers Operations Merge Down	`Ctrl` + `E`
Freeze Operations Switch freeze view	`Alt` + `F`
Freeze Operations Show/hide freeze	`Ctrl` + `F`
Freeze Operations Freeze border	`Ctrl` + `NumPad /`
Freeze Operations Expand frozen area	`Ctrl` + `NumPad +`
Freeze Operations Contract frozen area	`Ctrl` + `NumPad -`
Freeze Operations Unfreeze all	`Ctrl` + `D`
Freeze Operations Invert freeze/solution	`Ctrl` + `Shift` + `I`
Freeze Operations Smooth freezing	`Ctrl` + `NumPad *`
General Operations Copy	`Ctrl` + `C`
General Operations Cut	`Ctrl` + `X`
General Operations Paste	`Ctrl` + `V`
General Operations Creation of a new pen from a site	`Ctrl` + `Shift` + `C`
General Operations Pick color	`V`
General Operations Pick Layer	`H`
Splines Add point to spline	`LMB`
Splines Draw extruded curve	`Enter`
Splines Pressed in one	`Ctrl` + `Enter`
Splines Delete all point	`Esc`
Splines Delete the last point	`Bkspace`
Splines Change the position symmetry plane	`Tab` + `Drag Click`
Splines
HIde Operations Unhide All	`Ctrl` + `X`
HIde Operations Expand hidden area	`NumPad +`
HIde Operations Contract Hidden area	`NumPad -`
HIde Operations
Smoothing Increase level of smoothing	`Shift` + `WheelUp`
Smoothing Decrease level of smoothing	`Shift` + `WheelDown`
Smoothing
Specularity Increase Opacity of Specularity	`/`
Specularity Decrease opacity of specularity	`;`
Color Increase transperancy of texture	`P`
Color Decrease transperancy of texture	`O`
PopUps Color Picker	`B`
PopUps Pick pivot point	`F`
PopUps Show Layer List	`L`
PopUps Show tools panel	`Spacebar`
PopUps Depth Channel	`D`
PopUps Color Channel	`C`
PopUps Specular Channel	`R`
PopUps List of pens	`T`
PopUps List of materials	`M`
PopUps Types of drawing	`E`
PopUps Quick Panel	`~`
PopUps Symmetry	`S`
Camera and Custom Navigation Front	`NumPad 2`
Camera and Custom Navigation Back	`NumPad 8`
Camera and Custom Navigation Left	`NumPad 4`
Camera and Custom Navigation Right	`NumPad 6`
Camera and Custom Navigation Top	`NumPad 7`
Camera and Custom Navigation Bottom	`NumPad 1`
Camera and Custom Navigation Add Camera Shortcut	`Ctrl` + `Up Arrow`
Camera and Custom Navigation Delete Camera Shortcut	`Ctrl` + `Down Arrow`
Camera and Custom Navigation Switch to previous shortcut	`Ctrl` + `Left arrow`
Camera and Custom Navigation Switch to next shortcut	`Ctrl` + `Right arrow`
Sliders Setting Decrease Opacity	`O`
Sliders Setting Increase Opacity	`P`
Sliders Setting Decrease Angle	`9`
Sliders Setting Increase Angle	`0`
Sliders Setting Decrease Radius	`[`
Sliders Setting Increase Radius	`]`
Sliders Setting Decrease Degree	`-`
Sliders Setting Increase Degree	`+`
Sliders Setting Decrease Smooth Degree	`Shift` + `-`
Sliders Setting Increase Smooth Degree	`Shift` + `+`
Sliders Setting Decrease Specular Opacity	`;`
Sliders Setting Increase Specular Opacity	`'`
Sliders Setting Decrease Specular Degree	`<`
Sliders Setting Increaese Specular Degree	`>`
Sliders Setting Swap Colors	`X`