This scenerio assumes you have 2 directories and want to merge these together. -> We will assume directoryA and directoryB You will be using PHP Storm for this
# 2 >
Compare
Right click on the root of the project -> Then choose 'Compare'
# 3 >
Choose DirectoryA
Use Finder to find DirectoryA -> Ensure you compare both the same ROOTs as DirectoryA and DirectoryB