Actually you should be able to do this for yourself. Two of the holes look to be in place (the copper rings). For them you only need to drag hole from core pcb view and center it over the pad and adjust its size to match the hole you want. For the other two just drag a hole of the appropriate size to the appropriate positions (there is a pdf with dimensions on their web site). Hole will cause a hole (no copper) to be drilled in the board.