Custom Isometric Linetype

Hello everyone,

For the past two weeks I am trying to create a custom Isometric (ISO) Linetype.

I'm working with Autocad 2012 and I've made a custom Complex Linetype like the "HOT_WATER_SUPPLY" line type.

But I cannot make it in an Isometric layer.

Is that even possible to make in a coordinate system?

Thanks so much guys.

Peter