Hey @MingboPeng and @Erikbeeren ,
There’s no official InternalSource material in in the LBT plugin right now but, if you set up IronBug to work with the hack that I used in Legacy to represent internal source materials, @MingboPeng , then you can use the same hack in LBT. If you ever took a look at it, you’ll see that the Legacy INTERNAL SOURCE material is just a dummy opaque material that I end up swapping out with a real internal source in the “Export to OpenStudio” component:
So, if Ironbug is also set up to use this hack, all that you should have to do is create an Opaque Material called INTERNAL SOURCE and use it in a construction like so:
