[imans314]

I used to have just 1 template to save both books with and books without series.

The outcome of the template was:
No series: author - title
Series: author - series seriesnumber - title

The two templates I am using now are:
No series: {authors} - {title}
Series: {authors} - {series} {series_index:0>2s} - {title}

I have been trying something like this:
{authors} - {series}{series_index:0>2s| - | }{title}
This works fine without a series but with a series it looks like:
author - series - seriesnumber title.

I cannot find a way to remove the dash betweern series and serienumbers and add a dash between seriesnumber and title.

Can anyone explain what I am doing wrong?