Hello, neville
Most Trainz BR/Engish locos already have the attachment points "a.drain0" and "a.drain1" included in the loco mesh.
You can always check by using "TRAINZ Mesh Viewer2" or "Asset X" (I've noted some creators have not shown these points in the config file).
For the 9F all that was needed was a substitution to the config file, here it is;
smoke2
{
attachment "a.drain0"
mode "anim"
color 255,255,255,250
start 0.1
period 1
rate 20
velocity 1
lifetime 4
minsize 0.3
maxsize 5
}
smoke3
{
attachment "a.drain1"
mode "anim"
color 255,255,255,250
start 0.1
period 1
rate 20
velocity 1
lifetime 4
minsize 0.3
maxsize 5
}
When the loco is on the move use " Alt + D"
Remember to keep a copy of the original config file!
Thanks to "frogpipe" and his "Locomotive Attachment Mesh Library" <kuid2:204652:100336:3>
Cheers, evilcrow