XF 1.3 Staff hiding online status

One question, how come if some staff try to hid their online status, they are still visible? I can see them and I believe the rest of the staff can too. Is there a way to change this if you understand what I mean.
 
Well, as an example, my staff and would be able to see regular members hiding their online status, but I wouldn't be bale to see my fellow administrator when he is on. How is this possible if this controlled in the user group section. It makes sense, but not in this ^ way.
 
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