8.31.3 Can you answer these questions?

8.31.3.1 How to create an alphabetical attachment list that supports unicode characters?
8.31.3.2 Non-trivial usages of tikz foreach with a list of coordinates
8.31.3.3 Intersectionpoints 3D => Intersection of path3 with Bezier triangle is not yet implemented
8.31.3.1 How to create an alphabetical attachment list that supports unicode characters?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=643727

I would like to be able to create a list of attachments similar to the list of figures or tables. However, since it makes little sense to sort the attachments by page number, I would like to sort them ... 
[table-of-contents] [biber] [unicode] [sorting] [lua]
 
asked by B Legrand https://tex.stackexchange.com/landing/r/digest?cta=user&id=209693 Score of 1
8.31.3.2 Non-trivial usages of tikz foreach with a list of coordinates

https://tex.stackexchange.com/landing/r/digest?cta=question&id=643948

I'm struggling to make the following code work: 
\documentclass{minimal} 
\usepackage{tikz} 
\usetikzlibrary{calc} 
\begin{document} 
\begin{tikzpicture} 
\foreach \point in {(0,0),(0,2),(2,0),(2,2)} { 
... 
[tikz-pgf] [foreach]
 
asked by dEmigOd https://tex.stackexchange.com/landing/r/digest?cta=user&id=139580 Score of 1
8.31.3.3 Intersectionpoints 3D => Intersection of path3 with Bezier triangle is not yet implemented

https://tex.stackexchange.com/landing/r/digest?cta=question&id=643898

I am using Asymptote version 2.80 on a W10 PC. 
I try to re-use an old (2019) code to plot the intersection of a sphere with a cone. 
The 2019 generated drawing is joined. 
? 
I did that in 2019, but when ... 
[3d] [asymptote]
 
asked by jmj999 https://tex.stackexchange.com/landing/r/digest?cta=user&id=270119 Score of 1