The Preview feature in Librarian is very useful for .btw  files with a single template. But when .btw files have multiple templates, the user should be able to flag which template to use for the Librarian preview.  This is especially important when multiple label files have the same Start of Job template but a different template should be used for the preview.  Allow this to be set by right-clicking the correct template and selecting “Use as Librarian Preview”.