I don't want this feature as it is an inaccurate method to get the file path...
Does UnityEditor has a feature to get the filePath by Opening the file browser? I've looked at all the EditorGUILayout and it doesn't seems to be supported or may be I am wrong...
I don't think unity can open up a dialog box but you're free to use C# IO system libraries to build your own dialog box. Its a bit of work but if you want to use it often it might be a good idea to build it. I build my own 2D and 3D components like list boxes and 3D scroll bars and such.