Many small aircraft have a mechanical locking system for the nose wheel when the landing gear suspension is in the up position; it is released by applying pressure to the brakes when the suspension is compressed. Fighter planes of the 50's also worked this way.
I see that it is possible to lock or not the nose wheel in the .flt file; there is even a variable indicating the state of the nose wheel. But there is no possibility to act on this blocking in the development: there is absolutely nothing in the Events IDs...! As it seems to me that it is something basic in the modelling of an aircraft, I wish that we could find the possibility to block or not this nose wheel, as we can do it for the tail wheel via TOGGLE_TAILWHEEL_LOCK (TOGGLE_NOSEWHEEL_LOCK)...!
Thanks to the Asobo team for clarifying the problem!