11.34.3 Can you answer these questions?

11.34.3.1 Define multiple grammatical endings in the acro package

https://tex.stackexchange.com/landing/r/digest?cta=question&id=742789

Is there any way to define some new grammatical endings with the acro package. I need the following outputs of the acro below in the MWE: 
erweiterte Satz (1. normal singular, this works) 
erweiterten ... 
[acronyms] [acro]
 

asked by sp8cky https://tex.stackexchange.com/landing/r/digest?cta=user&id=297952 Score of 3

answered by MS-SPO https://tex.stackexchange.com/landing/r/digest?cta=user&id=245790 Score of 0

11.34.3.2 tikz: Import coordinates from external file

https://tex.stackexchange.com/landing/r/digest?cta=question&id=745018

What is the best way to load external data into a tikzpicture? I have a list of comma-separated pairs of values, i.e. coordinates, e.g. (1,1),(1,2),... to use to style cells in a grid. 
In the image ... 
[tikz-pgf] [pgfplotstable]
 

asked by PatrickT https://tex.stackexchange.com/landing/r/digest?cta=user&id=13102 Score of 1

11.34.3.3 Error combining pgfplotstable and longtable in Latex

https://tex.stackexchange.com/landing/r/digest?cta=question&id=745009

In Latex, I am using pgfplotstable and longtable to tabulate values from a csv file containing comma-separated values. As seen below, each row contains 8 values separated by commas: 
% For skipping ... 
[tables] [longtable] [pgfplotstable] [csv]
 

asked by mariestr https://tex.stackexchange.com/landing/r/digest?cta=user&id=398185 Score of 1