Logtainers are standard ISO platform size with four arms that can be raised to hold logs.
When collapsed they can carry a standard ISO 20 foot container above them or they maybe stacked as shown on the .jpg.
To see them stack you will need attachment points.
There is a file called attach_mesh.im which has been created with Pev’s attachment maker tool.
This needs to be incorporated with the wagon to expose the attachment points. See Pev’s instructions to do this.
To use it with a container on top use a.logc1 for the logtainer and a.logc3 for the container in the product queues on the wagon.
Bradley Bale provided much of the research on this model.