It is possible to load in the physical characteristics of another project including its Technology Layers, layer information, metal types, dielectric brick materials and top and bottom metal. When you select Circuit - Load Technology from the project editor main menu, a Browse window appears which allows you to select a Sonnet Technology File (.stf), Sonnet project or a substrate file (.matl). When you select a technology file, project or substrate file, its Technology Layers, dielectric layers, metal types, dielectric bricks , top cover metal type and bottom cover metal type are imported and used by the present circuit you have open. Please note that executing this command will replace the present technology of the project, including any Technology Layers.
You may also execute this command by selecting "Load Technology" from the main pop-up menu in the Stackup Manager.