In texmaker, I create document_setting.tex for input some document attribution like the author, publisher, some attribution in acknowledgements. And then input document_setting in master document report.tex.
Here is a command for a new variable, in gayaan.sty I write:
\newcommand{\var}[2]{\newcommand{#1}{#2}}
\newcommand{\Var}[2]{\newcommand{#1}{\uppercase{#2}}}
In document_setting.tex :
\Var{\titling}{Analisis dan Penghitungan Tingkat Kemiskinan}
\var{\subdir}{Subdirectorate of Constraction Statistics}
\var{\nopublication}{05340.1002}
In report.tex :
\documentclass{memoir}
\usepackage{gayaan}
\usepackage{lipsum}
\input{document_setting}
\begin{document}
\textbf{\Large{\titling}}
\subdir
\nopublication
\chapter{Introduction}
\lipsum[5]
\section{example}
\lipsum[5]
\end{document}
And the result is success, but I can't do this in Lyx. Does anyone know how to do it in lyx? Create something like document-setting.tex?