I have tried everything to to generate a horn effect but no luck. The instruction manual does not have any reference on how to generate the horn effect - unlike the one I can do on 4449. I do realize that 4436 was built in 2008 and 4449 in 2016 incorporating several special features that 4436 does not offer - such as smoking whistle. So I wonder if 4436 cannot generate a "horn" like 4449.
Also, I have yet to figure out how to turn off the tender marker lights with the remote. Other than pulling the plug from inside the tender, is there a way to shut off the tender marker lights? I can turn off the tender marker lights on 4449 with my Legacy remote, but can not do the same function on 4436. I'm not a fan of lighted marker lights on tenders - very un-prototypical. Unless an engine is running light, marker lights should not be mounted on a tender, let alone turned on pull a consist.
Since both are Legacy versions, I thought that there were similar functions on both engines. But maybe being 8 years apart, Lionel had not yet incorporated the marker light "turn off" function on the older engine.
Ray