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For a book project I have created two indices using imakeidx. In addition, I am using idxlayout to control the layout of the indices. I would like the first index to be two columns and the second index to be one column. I have attempted to control the columns by including columns=2 in the first \makeindex and columns=1 in the second. Unfortunately, the second index renders as two columns. I suspect that the columns option (defaults to two) for idxlayout (which must come after imakeidx) is over-riding the columns options for the individual \makeindex calls.

Can someone suggest a possible fix that will allow me to render the first index in two-column format and the second index in one-column format? Thank you for any suggestions you can offer.

MWE is below.

\documentclass{book}
\usepackage{imakeidx}
\makeindex[name=subject,title=Subjects,columns=2]
\makeindex[name=species,title=Species,columns=1]

\usepackage[indentunit=10pt,justific=raggedright]{idxlayout}

\begin{document}
\mainmatter
\chapter{Chapter Name}

First\index[subject]{First}
Second\index[subject]{Second}
Species1\index[species]{Genus species1}
Species2\index[species]{Genus species2}

\printindex[subject]
\printindex[species]

\end{document}
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  • The documentation of imakeidx states that idxlayout should be loaded after imakeidx. However, you posted not a MWE, so we can't say anything about this – user31729 Jul 2 '15 at 20:03
  • Yes, I did not produce a MWE. My original question, however, does note that idxlayout is in my preamble AFTER imakeidx. – D Ogle Jul 2 '15 at 23:34
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    It works fine for me. Without any compilable code, you will be lucky to get anyone guessing for you here. – Aubrey Blumsohn Jul 3 '15 at 5:59
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    I have added a MWE example above that demonstrates the problem. Thanks. – D Ogle Jul 3 '15 at 15:53
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Issue \idxlayout{columns=1} within the document body, between the first and second instance of \printindex.

\documentclass{book}
\usepackage{imakeidx}
\makeindex[name=subject,title=Subjects]
\makeindex[name=species,title=Species]

\usepackage[indentunit=10pt,justific=raggedright]{idxlayout}

\begin{document}
\mainmatter
\chapter{Chapter Name}

First\index[subject]{First}
Second\index[subject]{Second}
Species1\index[species]{Genus species1}
Species2\index[species]{Genus species2}

\printindex[subject]
\idxlayout{columns=1}
\printindex[species]

\end{document}
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