I was looking at the BNSF Dash 8-40BW and I found that the roadnumbers were #500-582. However, the JR BNSF Dash 8-40BW goes from #500-511 (or is it 513?). I was wondering if I could add on the remaining numbers to your locomotive. I've tried adding ARN to one locomotive and it didn't work out. If there's a way to add those extra numbers, how would I do it?