how to add/create a subgroup to a qtcreator project

i have a project... i would like to create subgroup so i can find a source code more easily how i can do that... i saw a couple of examples with those but cannot figure out a way to create it.


thanks

When I had to do this I edited .pro file. My case: I have MyProject/src and MyProject/src/SomeModule and my main .pro file is in MyProject. My solution: modify the main .pro file and set SUBDIRS var to "MyProject/src MyProject/src/SomeModule". Reopen my project in Qt Creator and that's it.