Creating a project
First you have to start Modelio by double-clicking on the Modelio shortcut.
Once Modelio is started, go to 'File / Create a project...' or click on the 
button. This will open a Project Creation dialog box:
The "Create a project / Project" window
Steps:
1. Enter a project name
2. Enter a description
3. You can choose to deploy the Java Designer module in your project by checking or not checking the Java project tickbox.
4. Click on "Create"
