diff --git a/crates/engine/src/cmd/vector_cmds.rs b/crates/engine/src/cmd/vector_cmds.rs
index 5a53d5ae07..dde53c8f1e 100644
--- a/crates/engine/src/cmd/vector_cmds.rs
+++ b/crates/engine/src/cmd/vector_cmds.rs
@@ -73,8 +73,8 @@ pub(crate) use params::{layer_id, nums, pt};
 pub use params::{parse_path, parse_stroke, path_json};
 pub use paths::STROKE_PATH_TOOLS;
 use paths::{
-    clipping_path_clear, clipping_path_set, path_delete, path_fill, path_rename, path_set, path_stroke, path_to_selection, path_transform, paths_list,
-    resolve_path, select_to_work_path,
+    clipping_path_clear, clipping_path_set, path_delete, path_fill, path_rename, path_set, path_stroke, path_to_selection, path_to_selection_with_mode,
+    path_transform, paths_list, resolve_path, select_to_work_path,
 };
 pub(crate) use paths::{is_work, path_mut};
 use shape::{
@@ -209,6 +209,27 @@ pub fn specs() -> Vec<CommandSpec> {
             run: path_to_selection,
             journal: true,
         },
+        // ⌘⇧↩ / Ctrl+Shift+Enter adds the path to the selection, ⌘⌥↩ / Ctrl+Alt+Enter subtracts it.
+        CommandSpec {
+            id: "path.addToSelection",
+            label: "Add Path to Selection",
+            menu: &[],
+            shortcut: Some("Cmd+Shift+Enter"),
+            params: r##"{"name":str|"work"|"layer"="work","feather":px=0,"antiAlias":bool=true} (path.toSelection with mode "add")"##,
+            enabled: has_doc,
+            run: |s, p| path_to_selection_with_mode(s, p, "add"),
+            journal: true,
+        },
+        CommandSpec {
+            id: "path.subtractFromSelection",
+            label: "Subtract Path from Selection",
+            menu: &[],
+            shortcut: Some("Cmd+Alt+Enter"),
+            params: r##"{"name":str|"work"|"layer"="work","feather":px=0,"antiAlias":bool=true} (path.toSelection with mode "subtract")"##,
+            enabled: has_doc,
+            run: |s, p| path_to_selection_with_mode(s, p, "subtract"),
+            journal: true,
+        },
         spec!("select.toWorkPath", "Make Work Path", [], r##"{"tolerance":0.5..10 px=2} → {subpaths,knots}"##, has_selection, select_to_work_path),
         spec!(
             "path.fill",
diff --git a/crates/engine/src/cmd/vector_cmds/paths.rs b/crates/engine/src/cmd/vector_cmds/paths.rs
index 167cb9d2a6..700abe3564 100644
--- a/crates/engine/src/cmd/vector_cmds/paths.rs
+++ b/crates/engine/src/cmd/vector_cmds/paths.rs
@@ -365,6 +365,17 @@ pub(super) fn path_to_selection(s: &mut Session, p: &Value) -> Result<Value> {
     Ok(json!({ "selected": selected }))
 }
 
+/// `path.toSelection` with the combine mode fixed by the command (⌘⇧↩ adds, ⌘⌥↩ subtracts);
+/// a `mode` in the params is overridden, the rest is forwarded and validated as usual.
+pub(super) fn path_to_selection_with_mode(s: &mut Session, p: &Value, mode: &str) -> Result<Value> {
+    let mut q = match p {
+        Value::Object(_) => p.clone(),
+        _ => json!({}),
+    };
+    q["mode"] = json!(mode);
+    path_to_selection(s, &q)
+}
+
 pub(super) fn select_to_work_path(s: &mut Session, p: &Value) -> Result<Value> {
     let tol = f64p(p, "tolerance").unwrap_or(2.0).clamp(0.5, 10.0);
     let d = s.active().ok_or(EngineError::NoDocument)?;
diff --git a/crates/ui-egui/src/app/commands.rs b/crates/ui-egui/src/app/commands.rs
index 14cce82bb8..24004d7749 100644
--- a/crates/ui-egui/src/app/commands.rs
+++ b/crates/ui-egui/src/app/commands.rs
@@ -218,6 +218,8 @@ impl PhotocraftApp {
                     | "select.loadSelection"
                     | "select.loadLuminosity"
                     | "path.toSelection"
+                    | "path.addToSelection"
+                    | "path.subtractFromSelection"
             )
             && self.session.active().is_some_and(|st| st.doc.selection.is_some())
         {
diff --git a/crates/ui-egui/src/input/shortcuts/tests.rs b/crates/ui-egui/src/input/shortcuts/tests.rs
index c6b8694a6e..cfb3203f10 100644
--- a/crates/ui-egui/src/input/shortcuts/tests.rs
+++ b/crates/ui-egui/src/input/shortcuts/tests.rs
@@ -163,6 +163,91 @@ fn pen_custom_undo_binding_and_menu_retract_pending_points() {
     assert!(app.ui.pen.is_none());
 }
 
+/// A 200×200 document for the ⌘⇧↩ / ⌘⌥↩ tests.
+fn selection_app() -> PhotocraftApp {
+    let mut app = PhotocraftApp::new(photocraft_engine::Session::new(), Default::default());
+    app.run("file.new", serde_json::json!({"width": 200, "height": 200})).unwrap();
+    app
+}
+
+fn set_work_rect(app: &mut PhotocraftApp, x: i32, y: i32, w: i32, h: i32) {
+    let knots = serde_json::json!([[x, y], [x + w, y], [x + w, y + h], [x, y + h]]);
+    app.run("path.set", serde_json::json!({"path": {"subpaths": [{"closed": true, "op": "combine", "knots": knots}]}})).unwrap();
+}
+
+/// The selection's bounds (x0, y0, x1, y1), if any.
+fn selection_bounds(app: &PhotocraftApp) -> Option<[i32; 4]> {
+    let r = app.session.active().unwrap().doc.selection.as_ref()?.content_bounds();
+    Some([r.x0, r.y0, r.x1, r.y1])
+}
+
+fn press_key(app: &mut PhotocraftApp, ctx: &egui::Context, key: Key, modifiers: Modifiers) {
+    ctx.begin_pass(egui::RawInput {
+        events: vec![egui::Event::ModifiersChanged(modifiers), egui::Event::Key { key, physical_key: None, pressed: true, repeat: false, modifiers }],
+        ..Default::default()
+    });
+    handle(app, ctx);
+    ctx.end_pass().textures_delta.clear();
+}
+
+#[test]
+fn ctrl_shift_enter_adds_the_path_to_the_selection() {
+    let mut app = selection_app();
+    let ctx = egui::Context::default();
+    app.run("select.rect", serde_json::json!({"x": 10, "y": 10, "width": 40, "height": 40})).unwrap();
+    let history = app.session.active().unwrap().history.past_len();
+
+    set_work_rect(&mut app, 100, 100, 40, 40);
+    press_key(&mut app, &ctx, Key::Enter, Modifiers::COMMAND | Modifiers::SHIFT);
+    assert_eq!(app.session.active().unwrap().history.past_len(), history + 2, "path.set + selection: {}", app.ui.status);
+    // Both rectangles are selected: the key added the path, it did not replace the selection.
+    assert_eq!(selection_bounds(&app), Some([10, 10, 140, 140]));
+}
+
+#[test]
+fn ctrl_alt_enter_subtracts_the_path_from_the_selection() {
+    let mut app = selection_app();
+    let ctx = egui::Context::default();
+    set_work_rect(&mut app, 10, 10, 40, 40);
+    app.run("path.toSelection", serde_json::json!({})).unwrap();
+    assert!(selection_bounds(&app).is_some());
+
+    press_key(&mut app, &ctx, Key::Enter, Modifiers::COMMAND | Modifiers::ALT);
+    assert_eq!(selection_bounds(&app), None, "the only selected area was subtracted: {}", app.ui.status);
+}
+
+#[test]
+fn add_and_subtract_path_keys_are_ignored_while_a_text_field_has_focus() {
+    let mut app = selection_app();
+    let ctx = egui::Context::default();
+    set_work_rect(&mut app, 10, 10, 40, 40);
+    app.run("path.toSelection", serde_json::json!({})).unwrap();
+
+    // Give a text field the keyboard focus, as a panel's numeric field would have it.
+    let mut text = String::new();
+    ctx.run_ui(Default::default(), |ui| {
+        ui.text_edit_singleline(&mut text).request_focus();
+    })
+    .textures_delta
+    .clear();
+
+    let history = app.session.active().unwrap().history.past_len();
+    for modifiers in [Modifiers::COMMAND | Modifiers::ALT, Modifiers::COMMAND | Modifiers::SHIFT] {
+        let events =
+            vec![egui::Event::ModifiersChanged(modifiers), egui::Event::Key { key: Key::Enter, physical_key: None, pressed: true, repeat: false, modifiers }];
+        // The field is drawn every frame, so it keeps the focus.
+        ctx.run_ui(egui::RawInput { events, ..Default::default() }, |ui| {
+            assert!(ui.ctx().text_edit_focused());
+            handle(&mut app, ui.ctx());
+            ui.text_edit_singleline(&mut text);
+        })
+        .textures_delta
+        .clear();
+    }
+    assert_eq!(app.session.active().unwrap().history.past_len(), history);
+    assert!(selection_bounds(&app).is_some());
+}
+
 #[test]
 fn parses_registry_shortcuts() {
     let sc = parse("Cmd+Shift+N").unwrap();
diff --git a/crates/ui-egui/src/menus/invoke.rs b/crates/ui-egui/src/menus/invoke.rs
index 850ac92fdd..3bb6d616e4 100644
--- a/crates/ui-egui/src/menus/invoke.rs
+++ b/crates/ui-egui/src/menus/invoke.rs
@@ -187,6 +187,12 @@ fn invoke_file_commands(app: &mut PhotocraftApp, ctx: &egui::Context, id: &str,
         // ⌘↩ / Ctrl+Enter (#306): load the path selected in the Paths panel (or the one being
         // drawn) as a selection.
         "path.toSelection" if params.get("name").is_none() => crate::vector_ui::path_to_selection(app, params.clone()),
+        // ⌘⇧↩ / ⌘⌥↩ load the same path, adding it to or subtracting it from the selection.
+        "path.addToSelection" | "path.subtractFromSelection" if params.get("name").is_none() => {
+            let mut p = params.as_object().cloned().unwrap_or_default();
+            p.insert("mode".into(), json!(if id == "path.addToSelection" { "add" } else { "subtract" }));
+            crate::vector_ui::path_to_selection(app, Value::Object(p))
+        }
         // Layer › Rename Layer from a menu starts in-place renaming in the Layers panel.
         "layer.renameLayer" if params.get("name").is_none() => {
             let st = app.session.active().ok_or("no document")?;
diff --git a/crates/ui-egui/src/tools/vector_ui/path_selection_tests.rs b/crates/ui-egui/src/tools/vector_ui/path_selection_tests.rs
index 8cab12747a..9f520025e2 100644
--- a/crates/ui-egui/src/tools/vector_ui/path_selection_tests.rs
+++ b/crates/ui-egui/src/tools/vector_ui/path_selection_tests.rs
@@ -495,3 +495,38 @@ fn a_hidden_work_path_stays_hidden_when_another_tile_is_clicked() {
     assert!(right_outlines_on_switch(false) > 0, "a shown Work Path is drawn in that frame");
     assert_eq!(right_outlines_on_switch(true), 0, "the hidden one isn't");
 }
+
+/// ⌘⇧↩ / ⌘⌥↩ (#8015) take the same path as ⌘↩: a path being drawn with the Pen is finished first
+/// and combined, not the old work path.
+#[test]
+fn cmd_shift_enter_while_drawing_finishes_the_path_and_adds_it() {
+    let mut h = harness();
+    h.state_mut().run("path.set", json!({"name": "work", "path": rect_path(0.0, 0.0, 10.0, 10.0)})).unwrap();
+    h.state_mut().run("select.rect", json!({"x": 150, "y": 60, "width": 20, "height": 20})).unwrap();
+    h.state_mut().ui.tool = Tool::Pen;
+    let p = |x: f64, y: f64| [[x, y], [x, y], [x, y]];
+    h.state_mut().ui.pen = Some(PenPath { knots: vec![p(20.0, 20.0), p(120.0, 20.0), p(120.0, 80.0)], ..Default::default() });
+    h.run_steps(2);
+    press(&mut h, Key::Enter, Modifiers { shift: true, ..command() });
+    assert!(h.state().ui.pen.is_none(), "the pen path was finished: {}", h.state().ui.status);
+    // The new triangle (20..120 × 20..80) joins the selected square; the old work path is not used.
+    assert_eq!(selection(&h), Some([20, 20, 150, 60]));
+    assert_eq!(h.state().ui.selected_path, None, "loaded path deselected, as with ⌘↩");
+}
+
+#[test]
+fn cmd_shift_and_alt_enter_use_the_path_selected_in_the_paths_panel() {
+    let mut h = harness();
+    h.state_mut().run("path.set", json!({"name": "work", "path": rect_path(0.0, 0.0, 30.0, 30.0)})).unwrap();
+    h.state_mut().run("path.set", json!({"name": "Path 1", "path": rect_path(100.0, 40.0, 60.0, 50.0)})).unwrap();
+    h.state_mut().run("select.rect", json!({"x": 40, "y": 40, "width": 20, "height": 20})).unwrap();
+    h.state_mut().ui.tool = Tool::Brush;
+    h.state_mut().ui.selected_path = Some("Path 1".into());
+    h.run_steps(2);
+    press(&mut h, Key::Enter, Modifiers { shift: true, ..command() });
+    assert_eq!(selection(&h), Some([40, 40, 120, 50]), "{}", h.state().ui.status);
+    // ⌘⌥↩ with the saved path selected again takes it back out, leaving the square.
+    h.state_mut().ui.selected_path = Some("Path 1".into());
+    press(&mut h, Key::Enter, Modifiers { alt: true, ..command() });
+    assert_eq!(selection(&h), Some([40, 40, 20, 20]), "{}", h.state().ui.status);
+}