Here a template for all tags:
Use a column type: Column built from other columns, behaves like tags.
Code:
program:strcat(test(field('tags'), "Tag: ", ""),re(field('tags'),", ", ", Tag: "))
Here a template for specific tags, for example "Mystery, Thriller" you can add more if you like:
Code:
program:strcat(test(list_intersection(field('tags'),"Mystery, Thriller", ", "), "Tag: ", ""), re(list_intersection(field('tags'),"Mystery, Thriller", ", "),", ", ", Tag: "))