Use the FOLDER target property to organize targets into folders.
If not set, CMake treats this property as OFF by default. CMake generators that are capable of organizing into a hierarchy of folders use the values of the FOLDER target property to name those folders. See also the documentation for the FOLDER target property.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.7/prop_gbl/USE_FOLDERS.html