How can I load different scene in photoview360?

Easy as pie, but you need to give more informations in your questions so I can help you better, if you are using PV 2010 my answer will make no sense.

  1. Step 1:

    First, find a scene that you want to use (search for HDRI), here are some studio HDRI's:

  2. Step 2:

    Go to the rendering tab then to the Scenes, Lights and Cameras; then right click on Environment and Edit Scene.

  3. Step 3:

    Click on Browse and select the HDRI you downloaded earlier.

  4. Step 4:

    A better way is choosing the folder you have your own HDRI's in it, then they will appear with the ones that come with SolidWorks.