DxO ViewPoint can be integrated in DxO PhotoLab… Can Perspective Efex be integrated in DxO PhotoLab?

This information applies to version(s): 3, 4

While there is a direct button in DxO PhotoLab to launch Nik Collection by DxO plug-ins, DxO ViewPoint can be used directly from within DxO PhotoLab interface, while Perspective EFEX unfortunately cannot.