When using the API to have the user select an entity you can specify which type(s) of entities are valid to be selected. For example, when using the selectEntity method of the UserInterface object the second argument is the selection filter. Also when performing selections using in a custom command using the SelectionCommandInput object you can define a filter to specify which type(s) of entities are selectable. The selection filter is a string. The complete list of all valid selection filter strings are listed below.
| Filter String | Description |
| Bodies | Select BRepBody entities (both solid and surface). |
| SolidBodies | Select solid BRepBody entities. |
| SurfaceBodies | Select open (surface) BRepBody entities. |
| MeshBodies | Select mesh bodies. |
| Faces | Select BRepFace entities of any shape on solid and surface BRepBody objects. |
| SolidFaces | Select BRepFace entities of any shape on solid BRepBody objects. |
| SurfaceFaces | Select BRepFace entities of any shape on surface BRepBody objects. |
| PlanarFaces | Select planar BRepFace entities. |
| CylindricalFaces | Select cylindrical BRepFace entities. |
| ConicalFaces | Select conical BRepFace entities. |
| SphericalFaces | Select spherical BRepFace entities. |
| ToroidalFaces | Select toroidal BRepFace entities. |
| SplineFaces | Select spline (NURBS) BRepFace entities. |
| Edges | Select BRepEdge entities of any shape. |
| LinearEdges | Select linear BRepEdge entities. |
| CircularEdges | Select circular BRepEdge (circles and arcs) entities. |
| EllipticalEdges | Select elliptical BRepEdge (full ellipses and elliptical arcs) entities. |
| TangentEdges | Select a BRepEdge that connects faces that are tangent along that edge. |
| NonTangentEdges | Select a BRepEdge that connects faces that are not tangent along that edge. |
| Vertices | Select BRepVertex entities. |
| RootComponents | Select root Component objects. |
| Occurrences | Select Occurrence objects. |
| Sketches | Select Sketch objects. |
| SketchConstraints | Selects sketch geometric and dimensions constraints. |
| Profiles | Select profiles. |
| Texts | Select sketch text. |
| SketchCurves | Select any shape of sketch entity. |
| SketchLines | Select SketchLine entities. |
| SketchCircles | Select SketchCircle entities. |
| SketchPoints | Select SketchPoint entities. |
| ConstructionPoints | Select ConstructionPoint entities. |
| ConstructionLines | Select ConstructionLine entities. |
| ConstructionPlanes | Select ConstructionPlane entities. |
| Features | Select any type of feature. |
| Canvases | Select canvases. |
| Decals | Select decals. |
| JointOrigins | Select joint origins. |
| Joints | Select joints. |