To create a Global Macro the user would double click on a Project name in the plan view tree, and from the window that opens you would select the Macro Tab at the bottom. (As highlighted in Red in Caption 1:
You would now run through the process of creating the Macro that you wish to use, in fact at this stage with careful planning and thinking you may create a series of Macros to be run against a New Project, we will touch on this in more detail later on.
Once you have created your macro you will come to the page shown in Caption 2:
You will notice there are several functions displayed under the heading "Manage Global Project Macros", these are explained below:
If you have a specific set of bundles that you intend to use across several projects you can enable the auto-run feature, this will mean that every time you create a new project, all of the Global Macro's that you have created and set to auto-run will be run.
In effect this will allow you to create a store of Global Macros, and by editing each Macro auto run state you can manipulate all of your project bundles in one go when you create the Project.