Creating a new C++ class does not force the entire project to be compiled
Usually start the editor from VS or rider, and then when you create a new C++ class in the editor, you will be forced to recompile the code once, which provides a long time for fishing and water skiing, but if you need to create a large number of new C++ classes If so, a lot of time is wasted. So the editor provides an option
If unchecked, the code will not be compiled when creating a new C++ class. Perfect