Yafaray: Material with specular reflection

I did some tests with Internal, Cycles, LuxRender
With this engines, i can set material that have specular reflectance.

Here is a example image from cycles.

with Yafaray ShinyDiffuse i get this image:

Notice, that it have no specular highlights
And the mirror-effect is sometimes too high

So how can i set specular-material with control for IOR & Glossy-Roughness?

monkey.blend (127 KB)

new test
using mesh light (this create specular reflection) - but very sharp.

less specular - but more glossy than cycles/luxrender