A GUI for adding a new CMake sub-project

Suppose I want to add a CMake sub-project called "MySubProject". There are a few ways I could do this (none of them are particularly elegant):

Method A: Add the new CMakeLists.txt file outside the IDE

1. Create the subdirectory "MySubProject" and the file "MySubProject/CMakeLists.txt" outside of Qt Creator (e.g. using the console, or Windows explorer)
2. Add add_subdirectory(MySubProject) to the original CMakeLists.txt

Method B: Add the new CMakeLists.txt file as a general empty file inside the IDE

1. Right-click the target and select "Add New..." > "General" > "Empty File"
2. Add the directory name and file name to the "Empty File" dialog
3. Remove "MySubProject/CMakeLists.txt" as a source/resource from the target
4. Add add_subdirectory(MySubProject) to the original CMakeLists.txt

Suggestion

Provide an easy way to create this subproject within the Qt Creator IDE:

1. Right-click an existing project or CMakeLists.txt file
2. Select "New Subproject..."
3. Enter the name of the subproject

(The screenshot below shows the equivalent of steps (1) and (2) in a qmake SUBDIRS project)

Then, Qt Creator would:

• Create the "MySubProject" folder
• Create the "MySubProject/CMakeLists.txt" file (optionally with a single line at the top: "project(MySubProject)")
• Add add_subdirectory(MySubProject) to the original CMakeLists.txt