[myki]

Thank you very much, it is very instructive !

I hesitate to change the way "author_sort" works, so finally i found a solution :
I built 2 personnalised columns, from another :

#author_sort_lastname with {:'uppercase('{author_sort:list_item(0,\,)}')'}
#author_sort_firstname with {author_sort:list_item(1,\,)}

And my save as modele :

{#author_sort_lastname} {#author_sort_firstname:re([.],)}/{series:'test($,'{series}/[{series}-{series_index:0>2s}] ','{#author_sort_lastname} {#author_sort_firstname} - ')'}{title}

I kept first and last name separated in case i wish in the future, the firstname before

In the adjustments, i changed :

save_template_title_series_sorting = 'strictly_alphabetic'

At last, i tried to replace {#author_sort_lastname} and {#author_sort_firstname} by their value, but i get an error.

It was very interesting, thanx again