Yabdab's Filter Stack

hello guys,
we need help. The support don´t react an my specifig questions and tells me everytime the same.
I like the Filter stack and it´s cool but ther is something i dont understand correctly. maybe your could explain me better. I understand that the sorting is based on alphanumeric values 0-9 and a-z.

My question is…

It isn´t possible to change the Sort Value in a specifig way.
one example: it isnt possible to Sort the category “Nice to know” on
the first place and “Generals” on the second place etc.

What function has the field “Sort Value” in the Filter - Item (general Options) i try to sort all categorie
like i want, how it works?

Unfortunately, my question has not been answered so far, whether I can
disable the “Show all” button or put it all to the end position?

Thank you for helping us