-The user's default settings, preferences, and other helpful files are retained across sessions in a hidden file, called .bcast5, in the user’s \texttt{\$HOME} directory. Initially when \CGG{} is launched there is an empty project and there are program default settings, and from then on the \texttt{.bcast5} directory will contain the settings that were set when quitting. If you need to revert to the default settings, delete the \texttt{.bcast5} directory contents and restart \CGG{}. Or you may want to rename it temporarily if you think you might want it back later.
-Although the location defaults to \texttt{\$HOME/.bcast5}, you can use the \texttt{CIN\_CONFIG} variable to override this location. For example: \texttt{export CIN\_CONFIG=/tmp/.bcast5} will use a temporary setup for testing purposes. It is also useful for multiple users sharing the same home directory who would like to have different configuration/preferences settings data. And if you are experiencing inexplicable errors or crashes in \CGG{}, they may be due to a problem with \texttt{.bcast5} in which case taking it out of the picture can at least eliminate this as the cause.
+\section{.bcast5}%
+\label{sec:bcast5}
+\index{bcast5}
+
+The user's default settings, preferences, and other helpful files are retained across sessions in a hidden file, called \texttt{.bcast5}, in the user’s \texttt{\$HOME} directory. Initially when \CGG{} is launched there is an empty project and there are program default settings, and from then on the \texttt{.bcast5} directory will contain the settings that were set when quitting. If you need to revert to the default settings, delete the \texttt{.bcast5} directory contents and restart \CGG{}. Or you may want to rename it temporarily if you think you might want it back later.
+Although the location defaults to \texttt{\$HOME/.bcast5}, you can use the \texttt{CIN\_CONFIG} variable to override this location. For example: \texttt{export CIN\_CONFIG=/tmp/.bcast5} will use a temporary setup for testing purposes. It is also useful for multiple users sharing the same home directory who would like to have different configuration/preferences settings data. And if you are experiencing inexplicable errors or crashes in \CGG{}, they may be due to a problem with \texttt{.bcast5} in which case taking it out of the picture can at least eliminate this as the cause. Another use case is if we want multiple installations of \CGG{}, for example one stable and one experimental, we can create the \texttt{.bcastX} folder externally and then set it as default with the option \textit{Index files go here} in \nameref{sub:index_file_section}.