path_rearrange.py

from PathScripts import PathProject

obj = Gui.Selection.getSelection()[0]

proj2 = FreeCAD.ActiveDocument.addObject("Path::FeatureCompoundPython","Project")
PathProject.ObjectPathProject(proj2)
PathProject.ViewProviderProject(proj2.ViewObject)
App.activeDocument().recompute()

for g in obj.Group:
    olabel = FreeCAD.ActiveDocument.getObject(g.Name)
    g = proj2.Group
    g.append(olabel)
    proj2.Group = g

FreeCAD.ActiveDocument.removeObject(obj.Name)
App.activeDocument().recompute()