In my Incident process, I have an "Assign to Self" action. I'd like to hide that action if the incident is already assigned to the current user (they keep clicking on it, expecting it to go away). I created a precondition and selected "Runtime value", but entered $CurrentUser$. It doesn't work, but then I'm using a macro value instead. Is this just wishful thinking? Is there no way to create a precondition based on the current user or group?