Traktor Pro 3: Can't advance in preview?

Simple question about Traktor Pro 3:

When previewing a track, Traktor shows a small spectrogram above the search box. However, I can't seem to advance or skip around inside the preview by clicking locations along the spectrogram - clicking anywhere in the spectrogram restarts the preview at the beginning. My recollection is that Traktor 2 Pro used to allow that feature, but I might be wrong.

Is there a way to enable advancing within the preview? Or is there another way to do it? Thanks.