When we open/append models in Navisworks, the models sometimes contain geometry for model items that are not required. Fortunately, the iConstruct Navisworks Extension comes with a number of configurable tools and one of those is ReConstruct, a simple but powerful tool which allows us to select any item or items within the model and then re-construct them in to a new Navisworks .nwd file.
We start by opening a Navisworks file - this one contains Architectural, Structural and MEP elements.
To make things easier we could use search/selection sets to choose what we want to be in or new re-constructed model, or we can select from the Selection Tree, or even just manually select in the scene view.
Then we go to the ReConstruct Configuration option in the iConstruct window:
We can set this up as a simple Export Selected Only and save as a template.
When we run the template, we get a dialog box where we specify a name and save location. When this process is complete we are still in the original model, so now we need to open the new re-constructed model, which now only contains the items we previously selected.