Its right on the Main Part of the RNG Reporter, You know where your it tells you where your Frame is right? Well Right Click on that and At the bottom there Should be an Option that Says " Calculate Encounter Slots"
I'll clarify what I said before - I found the frame on the DPPt Time finder, Not in the main window, Just like in the Guide. I presume that is why I cannot see this feature. How would one get the frame from the DPPt Time Finder window to the main RNG Reporter window?