Hello again
Planetechef 
Sorry Planetechef,
Would you tell me again waht about MOD you talking ?

"
Japanese EL-Rail Catenaries MOD" or "
ML Shinkansen MOD" ??
If it's about a MOD "
Japanese EL-Rail Catenaries MOD", I think that you already could do it.
(This is Ragutarou san's slope-Lot that could connect with El-Rail and Passenger-Rail)

or
If it's about a MOD "
ML Shinkansen MOD" (Moonlinght san's latest work),
This MOD is for change graphics from
MAXIS default Mono-Rail's trail to ML's Shinkansen-Rail.so you need LOT as I wrote above in this case.
However, I don't know a LOT which connect with Mono-Rial to other rails.

If you want this LOT, you should make it by yourself, I think so.