Giving restricted access to some individuals
Problem
You want to give restricted access to some projects and/or to some modules to some individuals.
Solution
Discussion
Only the main utilities directory (defined in the CallWeb configuration file) has access to all projects. Even in the case of that directory, only modules that are available in it can be used (obviously).
Creating a secondary utilities directory offers the possibility of putting only the required modules in it, thereby restricting which actions users of that directory can take.
Also, only projects which explicitly list the secondary utilities directory (via the "Visible depuis" pound instruction) can be accessed from that directory.