To hide a module that is displayed (to clean up the workspace so that you can more easily work on another module, for instance):
Display the Project Organizer by choosing Project Organizer from the File menu of the App Builder primary window.
Select the modules in the module array that you want to hide.
Select one module by clicking mouse button 1 on it. To add to the selection click mouse button 2 on other modules. To select a number of adjacent modules drag-select with mouse button 1 or mouse button 2, starting above and to the left of the first module to be selected.
Choose Hide from the Module menu.
The user interfaces for the selected modules will be hidden.