DCT drive modes change on the move!
I remember to see somewhere a discussion about the possibility to change DCT drive modes on the move. But I can't find it any more...
The last information I read about this, was a possible maximum speed to change from S1 to S2, for example.
After a stupid and long test, I concluded that it's always possible to change drive modes on the move, as far as you are not putting any "gas" on the accelerator, then you are able to change the same way as when you are stopped.