HowTo/Scenery/mesh-table/att
From TrainzOnline
att
This tag is compulsory when creating a "kind" "name" effect.
Data type is a string so it has to be surrounded by "".
This is the name of the attachment point within your mesh where the text will be displayed. When creating your mesh the orientation of the attachment point is important. if it is incorrect your text may not display.
When creating your mesh your attachment point for your text should always start with "a." followed by a meaningful name. Examples "a.name" or "a.signalname". In the case of a corona (light) attachment point might be named "a.light".