To open one or more (VPS or TIFF) files in a new window, use the Open Preview Files menu item. You can select specific files that you want shown on the front or back surface, whether they belong to the same job or not.

To open selected files in a new window:

1. From the File menu, select Open Files.
   The Open Separation Files dialog box appears.
2. The dialog box shows the Front Surface and Back Surface tabs. If the tab for the surface to which you want to add files is not selected, select it.
3. Click Add.
4. Select the files you want to open, then click Add.
5. Click OK. 

The files are displayed in a new window.