problema com face no sketchup (problema com face no sketchup

[MestreWalla]

INGLES
I have an error in the face sketchup model, I do not know how to solve this problem, when I choose to face it selects the whole object and not to apply the color in place. (he's not in this group is not a component only happened when I used the plugin round corner).
If someone can help me thank you.

PORTUGUES
Estou com um erro de face no sketchup model, nao sei como resolver esse problema, quando seleciono a face ele seleciona todo o objeto e nao da para aplicar a cor no seu devido lugar. (ele nao esta em grupo, nao é um componente apenas aconteceu quando usei o plugin round corner).
Se alguem puder me ajudar agradeço.

Oh the picture to assess my problem.
Ai a imagem para avaliar meu problema.

[Gaieus]

It seems that your edges are all softened and SketchUp handles the whole surface as one. Turn hidden geometry on (View menu) to see the individual facets of the model and you can then paint them selectively.

The real solution would have been to group things separately though. The sink should not be softened together with the walls.

[MestreWalla]

Thank you, you helped me a lot.
I'm new to sketchup, I will follow your cue to start using layers.