Settings — Project: Project views
If a project contains multiple files, you can enable automatic project file grouping.
Select Configuration > Settings > Projects > Project views.
Set the required value for the Show Grouping when project has more that X files parameter. The default value is 10.
At the bottom of the screen, select Save.
When the number of files exceeds a defined limit then the Groups tab is automatically displayed in the Project Editor.
If you have a single language project with many files you can also manage the project at a language level rather than at a file level. The number of files in a project when this is visible is set in a similar way.
Select Configuration > Settings > Projects > Project views.
Select Show Language view when single project has more than X files.
At the bottom of the screen, select Save.