Brush Size & Hardness ; [Alt] + Right Click
If you drag right and left,you can change the size of brush. If you drag up and down, you can change the hardness of brush.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-1-1.gif)
Merge All Visible Layers to a New Layer; [Ctrl] + [Alt] + [Shift] + [ E ]
You can merge all visible parts as a new layer by this shortcut.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-2.gif)
Mask View; [Alt] + Click Layer Mask
After choosing the ‘Layer Mask’, you can check the Mask’s condition. When you use the same shortcut again, you can go back to the original view.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-3.gif)
Drag-Zoom; [Ctrl] + [Space] + Drag
You can zoom-in and zoom-out by this shortcut.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-4.gif)
Invert Colors of Selected Layer; [Ctrl] + [ I ]
This shortcut is useful especially when you want to inverse the layer mask.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-5.gif)
Merge Selections;[Ctrl] + [Shift]+ Click Layer Mask
Sometimes we need to merge 2 or 3 selections to a selection. If so, choose the mask and use this shortcut. Arrow becomes ‘+’mark and click (not drag, just click) another mask with push [Ctrl] + [Shift]. You can see that 2 selections are merged.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-6.gif)
Select;[Ctrl]+Click Mask / Deselect;[Ctrl] + [D]
Very easy and you will use this shortcut often .
![](https://shiropro.jp/wp-content/uploads/2019/10/12-7.gif)
Transform; [Ctrl]+[T]
You will also use this shortcut often when you want to change the size and the angle.
![](https://shiropro.jp/wp-content/uploads/2019/10/12-8.gif)