Yes, strange as just the other day I was asking the question about whether a plug-in for TSM >>> RW was possible.
Can confirm once texture adjusted, the items exported into RW and placed/appear without any problem.
Obviously that test was with a very simple station nameboard, next up will be to test it with some more complex items. I'm not sure how successful the procedure would be for something like a locomotive or animated model, but it certainly means those who find TSM easier to produce straightforward bridges or buildings can now have a shot at it.
Further investigation of the slight texture misalignment needed, basically the texture on the face of the actual signboard had slipped about 5% "down" in the y plane but not the others. So if any of 3DC "experts" can think of any reason for this or a workaround at the import stage information gratefully received.