Kingjohn
It looks like you might be asking about two different things at once: (the historical figure) and solid features (a concept in CAD software like SOLIDWORKS). 🏗️ Solid Features in CAD
In software like SOLIDWORKS , you can control which specific bodies are affected by a feature. 👑 Historical "Feature" of King John kingjohn
Is "kingjohn" perhaps a you're researching? Introduction to Feature-Based Solids Modeling It looks like you might be asking about
In Computer-Aided Design (CAD), a "solid feature" refers to a parametric operation used to build or modify 3D geometry. kingjohn