7.16.3 Can you answer these questions?

7.16.3.1 Prevent KOMA-script marginal note to split over page break

https://tex.stackexchange.com/landing/r/digest?cta=question&id=585773

If a marginal note in KOMA-script is near the page end, KOMA-script just splits the note in whatever place it decides and moves the tail to the margin of the next page. For short notes it creates ... 
[koma-script] [marginnote]
 

asked by facetus https://tex.stackexchange.com/landing/r/digest?cta=user&id=29546 1 vote

7.16.3.2 ChkTeX fails with nested math mode

https://tex.stackexchange.com/landing/r/digest?cta=question&id=586193

MWE: 
\begin{align} 
\begin{array} {l} 
abc 
\end{array} \\ 
3 - 2 = 1 
\pi 
\end{align} 
ChkTeX detects "Wrong length of dash" in 3 - 2 = 1 and "Command terminated ... 
[math-mode] [chktex]
 

asked by DKozl https://tex.stackexchange.com/landing/r/digest?cta=user&id=231894 1 vote

7.16.3.3 Rightmark of \subsection disappear when it's on the same page with \section

https://tex.stackexchange.com/landing/r/digest?cta=question&id=586066

In a two-sided article, I wish to show the current subsection name on the odd pages, and the current section name on even pages. Therefore I wrote 
\fancyhead[RO]{\rightmark} 
\fancyhead[LE]{\leftmark} 
\... 
[fancyhdr]
 

asked by Jinwen https://tex.stackexchange.com/landing/r/digest?cta=user&id=194994 1 vote