Items from ICE appear on separate layers in ICEcad. All ICE items in ICEcad appear on layers that have names beginning with ICE, for example ICE Architectural iLines, ICE Custom Items, and ICE Tags. Items from the DIRTT catalog appear on layers that begin with DIRTT, for example, DIRTT Wall Segments and DIRTT Wall Intersections. To work with layers in ICEcad, you can use the AutoCAD Layer Properties Manager.

This image shows DIRTT layers in the AutoCAD Layer Properties Manger: