Wie kann ich beliebig viele farblich abgesetzte Anmerkungen anlegen und verarbeiten?

 \documentclass[a4paper]{article} 
  \usepackage[utf8]{inputenc} 
  \usepackage[T1]{fontenc}                 
  \usepackage[ngerman]{babel} 
    \usepackage{xcolor}
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%newNOTES%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \newcommand\newnotestype[2]{%
     \newcounter{#1note}%
      \expandafter\newwrite\csname the#1notes\endcsname
      \expandafter\immediate\expandafter\openout\csname
      the#1notes\endcsname=\jobname.#1\relax %
     \expandafter\newcommand\csname  #1note\endcsname[1]{%
     \stepcounter{#1note}%
        {%
     \tiny\textsuperscript\expandafter\textcolor{#2}{{%
     \raisebox{1ex}{\hbox{\kern-0.0em\csname
     the#1note\endcsname\kern-0.0em}}}}%
    \expandafter\immediate\expandafter\write\csname the#1notes\endcsname%
     {\csname the#1note\endcsname\ \unexpanded{##1 \par}}%
      }}%
      %
      \expandafter\newcommand\csname display#1notes\endcsname[1]{%
     \vspace{1\baselineskip}%
     \expandafter\immediate\expandafter\closeout%
     \csname the#1notes\endcsname%
     \par\tiny\expandafter\textcolor{#2}{\textbf{##1}}\par%
     \input\jobname.#1%
     }}%
    \usepackage{longtable}
    \parindent=0pt
    \newnotestype{new}{red}
    \newnotestype{ade}{magenta}
    \newnotestype{any}{blue}
    \begin{document} 
    Ein Testtext\adenote{Anmerkung} mit vier\newnote{Anmerkung}
    verschiedenen\anynote{Anmerkung}\newnote{Anmerkung} farblich gekennzeichneten
    Anmerkungen.Ein Testtext ohne verschiedene farbliche Anmerkungen.
    \vspace{-2\baselineskip}
    \begin{longtable}[l]{p{2cm}p{2cm}p{2cm}}
    \displaynewnotes{new}&\displayadenotes{ade}&\displayanynotes{any}\\
    \end{longtable}
    \end{document}