[chaley]

Originally Posted by meme

• Enter the following text ...snip...
  ...or enter this text as the template to collect only books in a series - books not in series won't have a value, but those in a series will be 'Author - Series'
  

  {series:'test(field('series'),strcat(field('author'),' - ',field('series')), '')'}

And if anyone has a simpler way of doing the second template let me know.

Either

{series:'test($,template('[[series]] - [[authors]]'),'')'}

or

program:test(field('series'),template('{series} - {authors}'),'')