Designing a metallic roller style left navigation panel for a website

Create some lines using line tool. Merge all the line layers. Reduce their opacity.

Select all the button layers. Duplicate them several times and place below each other as shown.

Create some more lines behind every button. Place them as shown.

Move these layers below all the layers in layer order in layer palette.

Create a vertical line a shown. Press Ctrl+T. Right Click and select Warp. Select "Flag" from the preset warp shapes. Adjust settings as shown.