You can also use the Outliner!
Here a moving a Group named "Cylindre" to an element of a general Group named "Ensemble"!
[image: 4MYq_GIF_acyl.gif]
[image: 6doo_arbo.jpg]
And then use the cool free Real Time SimLab Composer Lite Vf (maxi 1920 * 1080)
(texture with the free cool onlineSumoPaint !
[image: Gyt4_sumo2.jpg]
[image: sumo3.jpg]
Also note that if you turn X-ray render mode on,you can select edges and points "through" faces that would otherwise obscure your view. So X-ray is not "just a cool 'glass rendering' display mode but can have practical uses as well.