The clip cube is a fantastic technique for filtering your model in 3D. The clip…
Vectorworks Tip 325 – Clip Cube
I like using the Clip Cube; It is like a 3D viewport crop that is flexible and allows you crop out the parts of your design that you want to hide. The technique is to select an object, then activate the clip cube. If you do it this way, the clip cube will be just around the selected object.