It can sometimes be necessary to import buildings/blocks from another dsb file into a file that contains an existing model. To do that follow the steps below.
Tip: If you wish to merge selected blocks from the imported building(s) to the existing building you can use the Transfer blocks tool to move the blocks from the imported building to the existing building. Once you have transferred the blocks you wish to keep you can delete the imported building(s) from the Navigator panel.
Note: Bear in mind that components and templates are not imported with the geometry and attributes when using the Import building from external file command. This means that if the building in the external file refers to custom user-defined components or templates that are not also included in the destination model, it is likely that component/template selections will be missing or incorrect in the imported building. For example if the model in the external file includes a custom activity template and it is imported to a model without that template then you are likely to end up with blank settings where you might expect that Activity template to be selected. In general you should assume that any custom components and templates and their selections will need to be remade in the imported model.