8.46.3 Can you answer these questions?

8.46.3.1 tcolorbox on line arg not working
8.46.3.2 How to add a line over numbering in Lyx?
8.46.3.3 Is it possible to change cell color conditionaly in datatool?
8.46.3.1 tcolorbox on line arg not working

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650254

When I put the on line argument in the parameters of the tcolorbox, the box should be where the red cross is, as you can see it doesn't work. 
MWE: 
\documentclass{article} 
\usepackage[utf8]{inputenc} 
\... 
[tcolorbox] [alignment]
 
asked by Flowt https://tex.stackexchange.com/landing/r/digest?cta=user&id=270421 Score of 1
8.46.3.2 How to add a line over numbering in Lyx?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650818

I want to add a line in footer over the page numbering in lyx, how can I do that ? 
[lyx]
 
asked by Samir Samy https://tex.stackexchange.com/landing/r/digest?cta=user&id=264878 Score of 1
answered by Fran https://tex.stackexchange.com/landing/r/digest?cta=user&id=11604 Score of 0
8.46.3.3 Is it possible to change cell color conditionaly in datatool?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=650637

I have a .csv which is something like this: 
N,A,B 
64,50,64 
128,128,120 
Reading it with: 
\begin{table}[ht] 
\footnotesize 
\DTLloaddb{mytable}{mytable.csv}% Load CSV data 
\centering 
\... 
[datatool]
 
asked by aripod https://tex.stackexchange.com/landing/r/digest?cta=user&id=224091 Score of 1