Add a simple feature in Pixel arithmetic

[LemanFenix]

I'd love to have the option in Pixel arithmetic to have the operator "Model: Apply only to model TOP surface". I'm printing flat ("2D+") objects for which I want the top (the ceiling) to be affected, but not the walls.

Keep up the good work, amazing tool.

[sn4k3]

It have the Model surface option, it will apply to all visible surfaces, that is walls and tops. Have you tried?

[LemanFenix]

Yes I have tried. Yet, I would like Tops but not Walls. So, Tops alone. Top could be defined by an angle (arbitrary coded, or user input).

Thanks

[sn4k3]

Ok I will add that