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I was making a hollow object by making the outside and then shelling (It's for a rotomolded plastic product so shelling is ideal) . After shelling I realised that I had left out some details. So I filled in the solid again using Boolean commands.
When I went to shell again BricsCAD will not let me because it says I still have a shell in there.
It is true, when I checked using the solidedit's check function, the shell is listed.
So is there a way of drilling down into a solid's hierarchy to remove elements (in particular, shells) ??