Hmm.. Seems, that it's mine misconception. Thus it turns to be a feature request.
In attached screenshot you can see, that I've narrowed it vertically so it takes less space and I was (by mistake) thinking, that selecting "over" will print numbers over the graph.
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Works for me:
http://emergedesktop.org/SysMon.png
screenshot
Hmm.. Seems, that it's mine misconception. Thus it turns to be a feature request.
In attached screenshot you can see, that I've narrowed it vertically so it takes less space and I was (by mistake) thinking, that selecting "over" will print numbers over the graph.