The interior lights may be programmed to turn off when you start moving, depending on the version of R4LC it has. If so, they may not be suitable for classification lights. The smoke is controlled by the smoke regulator, it doesn't use the smoke output.
Here's a diagram for LED headlights and directional markers. This just uses the R2LC/R4LC headlight outputs to control all the lighting. Note that the dual headlights are optional, you can use just one LED as well. The bi-color LED's are common anode 3-wire type.
The diode at the bottom is to protect everything from reverse voltage, and the .01 caps are the triac loads. The resistor values were picked for the red/green LED's I used, you can vary them to affect brightness. I like the markers to be clearly visible, but not competing with the headlights, so you might choose to adjust those values.
