+
+After the first invocation of context help the system-wide script, bin/doc/ContextManual.pl, copies itself into
+the user's config directory, \$HOME/.bcast5. If the user needs to modify ContextManual.pl, it should be done
+on that copy from .bcast5 rather than the system-wide one. On all subsequent context help requests this
+(possibly modified) .bcast5 version of the script will be called. If later the \CGG{} package gets
+upgraded containing a newer, not 100\% compatible version of ContextManual.pl script, and/or not compatible
+structure of the HTML manual itself, the new system-wide version of the script will be copied into .bcast5
+again to ensure context help functionality. The older version of the script will be backed up (with the .bak
+suffix) as a reference of the modifications done by the user.