You can easily create a viewport from a camera, it is one of the easiest…
Vectorworks Tip 382 – How to Create a Linked Viewport With a Detail Reference
You can create a linked viewport by using a detail reference object. On the Object Info palette, choose the viewport that you want to link to. Then, the viewport will be permanently linked to the reference. If you move the viewport from one sheet to another, or change the number of the viewport, the reference will update automatically.