diff --git a/src/kiri/init.js b/src/kiri/init.js
index 5b45574f..6c64ba0b 100644
--- a/src/kiri/init.js
+++ b/src/kiri/init.js
@@ -2067,8 +2067,8 @@
 
         SPACE.mouse.onHover((int, event, ints) => {
             if (!API.feature.hover) return;
-            if (!int) return API.widgets.meshes();
-            API.event.emit('mouse.hover', {int, event, point: int.point, type: 'widget'});
+            if (!int) return API.feature.hovers || API.widgets.meshes();
+            API.event.emit('mouse.hover', {int, ints, event, point: int.point, type: 'widget'});
         });
 
         SPACE.platform.onHover((int, event) => {
@@ -2108,7 +2108,7 @@
                 return null;
             } else {
                 // return selected meshes for further mouse processing
-                return API.selection.meshes();
+                return API.feature.hovers || API.selection.meshes();
             }
         });
 
@@ -2126,7 +2126,7 @@
                     platform.deselect();
                 }
             } else {
-                return API.widgets.meshes();
+                return API.feature.hovers || API.widgets.meshes();
             }
         });
 
diff --git a/src/mode/fdm/client.js b/src/mode/fdm/client.js
index 04a76889..d209722f 100644
--- a/src/mode/fdm/client.js
+++ b/src/mode/fdm/client.js
@@ -12,6 +12,7 @@
         p1, p2, iw,
         lastMode, lastView, lastPillar,
         isFdmMode = false,
+        addingSupports = false,
         alert = [],
         boxes = {},
         func = {};
@@ -77,14 +78,14 @@
         });
         api.event.on("fdm.supports.add", func.sadd = () => {
             alert = api.show.alert("[esc] key cancels support editing");
-            api.feature.hover = true;
+            api.feature.hover = addingSupports = true;
         });
         api.event.on("fdm.supports.done", func.sdone = () => {
             delbox('intZ');
             delbox('intW');
             delbox('supp');
             api.hide.alert(alert);
-            api.feature.hover = false;
+            api.feature.hover = addingSupports = false;
         });
         api.event.on("fdm.supports.clear", func.sclear = () => {
             func.sdone();
@@ -136,6 +137,9 @@
             if (!isFdmMode) {
                 return;
             }
+            if (!addingSupports) {
+                return;
+            }
             delbox('supp');
             if (lastPillar) {
                 const {widget, box, id} = lastPillar;
@@ -170,6 +174,9 @@
             if (!isFdmMode) {
                 return;
             }
+            if (!addingSupports) {
+                return;
+            }
             // delbox('intZ');
             // delbox('intW');
             // addbox(point, 0xff0000, 'intZ');