you can have your samples,presets VSTI and Vst etc tagged ,and categorized and so on in mediabay.
the mediabay thumbnail is new in cubase 8.5 and currently support only steinberg products as i can see…
hope they gonna improve it at least as the suggestions in this topic, cuz the idea is good but its not implemented yet for “real world workflow” so i don’t find use for it yet 