In qmake projects, running qmake with -spec macx-xcode produces XCode project for it (and probably there is similar option for CMake). Maybe export option could be added somewhere in the menus perhaps which runs this qmake -spec macx-xcode for the project.

Maybe same for Visual Studio as well.

Qt Creator apparently refuses to run qmake command if make step is missing so adding that to qmake arguments and removing make step doesn't work and user has to go to command like and run it from there (and with make step it fails because Makefile is missing).