diff --git a/modeling-cmds/src/def_enum.rs b/modeling-cmds/src/def_enum.rs
index 9da7e7ff..5796fbee 100644
--- a/modeling-cmds/src/def_enum.rs
+++ b/modeling-cmds/src/def_enum.rs
@@ -1045,6 +1045,34 @@ define_modeling_cmd_enum! {
             pub curve_id: Uuid,
         }
 
+        /// Project an entity on to a plane.
+        #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema, ModelingCmdVariant)]
+        #[cfg_attr(feature = "ts-rs", derive(ts_rs::TS))]
+        #[cfg_attr(feature = "ts-rs", ts(export_to = "ModelingCmd.ts"))]
+        pub struct ProjectEntityToPlane {
+            /// Which entity to project (vertex or edge).
+            pub entity_id: Uuid,
+            /// Which plane to project entity_id onto.
+            pub plane_id: Uuid,
+            /// If true: the projected points are returned in the plane_id's coordinate system,
+            /// else: the projected points are returned in the world coordinate system.
+            pub use_plane_coords: bool,
+        }
+
+        /// Project a list of points on to a plane.
+        #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema, ModelingCmdVariant)]
+        #[cfg_attr(feature = "ts-rs", derive(ts_rs::TS))]
+        #[cfg_attr(feature = "ts-rs", ts(export_to = "ModelingCmd.ts"))]
+        pub struct ProjectPointsToPlane {
+            /// The id of the plane used for the projection.
+            pub plane_id: Uuid,
+            /// The list of points that will be projected.
+            pub points: Vec<Point3d<f64>>,
+            /// If true: the projected points are returned in the plane_id's coordinate sysetm.
+            /// else: the projected points are returned in the world coordinate system.
+            pub use_plane_coords: bool,
+        }
+
         /// Enum containing the variety of image formats snapshots may be exported to.
         #[derive(Debug, Clone, PartialEq, Serialize, Deserialize, JsonSchema, FromStr, Display)]
         #[serde(rename_all = "snake_case")]
diff --git a/modeling-cmds/src/ok_response.rs b/modeling-cmds/src/ok_response.rs
index 5b95d450..b51d1096 100644
--- a/modeling-cmds/src/ok_response.rs
+++ b/modeling-cmds/src/ok_response.rs
@@ -500,6 +500,20 @@ define_ok_modeling_cmd_response_enum! {
             pub control_points: Vec<Point3d<f64>>,
         }
 
+        /// The response from the `ProjectEntityToPlane` command.
+        #[derive(Debug, Serialize, Deserialize, Clone, JsonSchema, ModelingCmdOutput)]
+        pub struct ProjectEntityToPlane {
+            /// Projected points.
+            pub projected_points: Vec<Point3d<f64>>,
+        }
+
+        /// The response from the `ProjectPointsToPlane` command.
+        #[derive(Debug, Serialize, Deserialize, Clone, JsonSchema, ModelingCmdOutput)]
+        pub struct ProjectPointsToPlane {
+            /// Projected points.
+            pub projected_points: Vec<Point3d<f64>>,
+        }
+
         /// The response from the `CurveGetType` command.
         #[derive(Debug, Serialize, Deserialize, Clone, JsonSchema, Eq, PartialEq, ModelingCmdOutput)]
         pub struct CurveGetType {