i believe you cant. you gotta remake it but larger.
make a layer and colour it blue
To make wood white in Photoshop, you can use the "Hue/Saturation" adjustment layer to desaturate the colors and make the wood appear white. You can also use the "Levels" adjustment layer to adjust the brightness and contrast of the wood to achieve a white color.
To copy a mask in Photoshop, you can right-click on the mask thumbnail in the Layers panel and choose "Duplicate Layer" or "Duplicate Mask." This will create a copy of the mask that you can then apply to another layer or make adjustments to.
Opacity is the transparency of your layer that is featured. It is useful for safe editing in Photoshop, opacity is used to 'dim down' a certain object and is commonly used in masking to see layers behind the layer that uses opacity. Higher opacity will make the layer more opaque. Lower opacity will make the layer more transparent. Hope this helps :)
Layer > Layer Style.
To crop a layer in Photoshop, select the layer you want to crop and then use the Crop tool to define the area you want to keep. Press Enter to apply the crop.
Layer > New > Background from layer to convert regular layer to Background.
To crop a specific layer in Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the size and position of the layer. Finally, press Enter to apply the crop to the selected layer.
From Layer > Layer Style > Drop Shadow.
To crop a single layer in Photoshop, first select the layer you want to crop. Then, use the crop tool to adjust the size and position of the layer. Finally, press Enter to apply the crop.
To crop one layer in Photoshop, select the layer you want to crop and use the Crop Tool (shortcut: C) to adjust the size and position of the layer. Then, press Enter to apply the crop.
Select layer you want to make transparent, then in top right corner of Layers panel type 0 in text field next to Opacity, or click triangle on right side of Opacity to expand slider and drag it to the left till you see 0%. Every new blank layer created in Photoshop is also transparent (Layer > New > Layer...).