Is there a Spectrum Scope in Simulink that has logarithmic frequency scale ?

Hello,

I used FFT frequency spectrum scope to analyze input signal. However, the spectrum scope has only logarithmic scale in amplitude, not in frequency. Can anyone help me, is there a scope that has logarithmic scaled frequency?

Or has anyone written a s-function block to do so? Otherwise I think the only solution is to port data to workspace, processed via fft, then display.

Thanks!