3D Element operations with slabs

[Paopao]

Sorry for the dumb question but I am having difficulties (i.e.: I can't) apply 3D element operations to slabs. I choose the two elements (target and operator) and nothing happens. Any idea where the glitch is? I remember doing it few months ago while playing around with AC18.


Pao

[Paopao]

Erwin wrote:
Yes, the operation is live, so deleting elements removes the operation.

You should have one (preferably two) dedicated layers for SEO. One layer will have the same layer intersection group number as the bulk of your layers (typically 1), you can use this layer for elements that cut your building even without SEO just from building material priority. The other layer should have an intersection number exclusive to that layer (like 99, or 50 or whatever high you would unlikely reach), so that building material priority is not taken into account when interacting with other elements.

They should be hidden on your typical layer combinations and I prefer a wire model view on my 'show all layers' type combinations. That way you can more clearly see what's going on with the cutting.

Thanks very much for your help Erwin and sorry for taking your time with such a really dumb question.