Represent after that with the previous instrument the zone reserved for the lowest menu’s buttons (first – the upper element, then – the lowest one).

Blending Options-Inner Glow

Blending Options-Gradient Overlay

Gradient’s parameters:

Blending Options-Stroke

Gradient’s parameters:

Draw a button now, making use of the known instrument already

Fill 0% on the layers.
Blending Options-Drop Shadow