If a project is open in IntelliJ IDEA,
you can access the New Module wizard from:
The main menu: .
The Project tool window:
right-click a module folder and select .
The Project Structure dialog:
in the leftmost pane select Modules,
above the pane to the right click 
and
select New Module.
Use the New Module wizard to add a module to your project. (The new module will be created from scratch.)