Mrthfx

This is a follow-up question of my previous one:
Cross-referencing numeric values and text from later section to executive summary of a latex document

I have finished making my report and now my boss asks to insert an index into the document.I have made a sample as below (the tex file is created using Rmarkdown and pandoc, so it may have some code not needed but incorporated)

documentclass[]{article}

usepackage{lmodern}

usepackage{amssymb,amsmath}

usepackage{ifxetex,ifluatex}

usepackage{fixltx2e} % provides textsubscript

ifnum 0ifxetex 1fiifluatex 1fi=0 % if pdftex

  usepackage[T1]{fontenc}

  usepackage[utf8]{inputenc}

else % if luatex or xelatex

  ifxetex

    usepackage{mathspec}

  else

    usepackage{fontspec}

  fi

  defaultfontfeatures{Ligatures=TeX,Scale=MatchLowercase}

fi

% use upquote if available, for straight quotes in verbatim environments

IfFileExists{upquote.sty}{usepackage{upquote}}{}

% use microtype if available

IfFileExists{microtype.sty}{%

usepackage{microtype}

UseMicrotypeSet[protrusion]{basicmath} % disable protrusion for tt fonts

}{}

usepackage[margin=1in]{geometry}

usepackage{hyperref}

hypersetup{unicode=true,

            pdftitle={Testing},

            pdfborder={0 0 0},

            breaklinks=true}

urlstyle{same}  % don't use monospace font for urls

usepackage{graphicx,grffile}

makeatletter

defmaxwidth{ifdimGin@nat@width>linewidthlinewidthelseGin@nat@widthfi}

defmaxheight{ifdimGin@nat@height>textheighttextheightelseGin@nat@heightfi}

makeatother

% Scale images if necessary, so that they will not overflow the page

% margins by default, and it is still possible to overwrite the defaults

% using explicit options in includegraphics[width, height, ...]{}

setkeys{Gin}{width=maxwidth,height=maxheight,keepaspectratio}

IfFileExists{parskip.sty}{%

usepackage{parskip}

}{% else

setlength{parindent}{0pt}

setlength{parskip}{6pt plus 2pt minus 1pt}

}

setlength{emergencystretch}{3em}  % prevent overfull lines

providecommand{tightlist}{%

  setlength{itemsep}{0pt}setlength{parskip}{0pt}}

setcounter{secnumdepth}{0}

% Redefines (sub)paragraphs to behave more like sections

ifxparagraphundefinedelse

letoldparagraphparagraph

renewcommand{paragraph}[1]{oldparagraph{#1}mbox{}}

fi

ifxsubparagraphundefinedelse

letoldsubparagraphsubparagraph

renewcommand{subparagraph}[1]{oldsubparagraph{#1}mbox{}}

fi



%%% Use protect on footnotes to avoid problems with footnotes in titles

letrmarkdownfootnotefootnote%

deffootnote{protectrmarkdownfootnote}



%%% Change title format to be more compact

usepackage{titling}



% Create subtitle command for use in maketitle

newcommand{subtitle}[1]{

  posttitle{

    begin{center}large#1end{center}

    }

}



setlength{droptitle}{-2em}



  title{Testing}

    pretitle{vspace{droptitle}centeringhuge}

  posttitle{par}

    author{}

    preauthor{}postauthor{}

    date{}

    predate{}postdate{}



usepackage{imakeidx}

usepackage{mfirstuc}

makeindex[intoc,columns=1]

makeatletter

newcommandstorehide[2]{{def@currentlabel{#1}label{#2}}}



begin{document}

maketitle



setosaindex{Flower!setosa}



newcommandabidx[1]{#1index{Flower!capitalisewords{#1}}}



abidx{setosa}



abidx{setosa}, abidx{versicolor}, abidx{virginica}



begin{enumerate}

deflabelenumi{arabic{enumi}.}

item

  This is a ref*{label01}

item

  Types of flowers: ref*{label02}

item

  Types of flowers: ref*{label03}

end{enumerate}



storehide{test}{label01}



storehide{SETOSA, VERSICOLOR AND VIRGINICA}{label02}



storehide{abidx{setosa}, abidx{versicolor}, abidx{virginica}}{label03}



newpage

printindex





end{document}

I create a list of terms and cross-referenced them in other part of the document, what I want to the index each and every one of the terms so that they can be listed in the index part (i.e. cross-referencing label03), but it is not working.

What have I done wrong? Thanks!