Popup: diagnosis “is already in the problem list ”

In the diagnosis window, when I choose a diagnosis from the previous assessments list, E clinical works gives a popup saying the diagnosis “is already in the problem list “.  Is there any way to stop this popup?
It is annoying because I see the patient for the same diagnosis every single time, for example rheumatoid arthritis.  It is on the problem list and I needed to stay on the problem list.  But I do not want the pop up every single time.