diff -r a2342f26c9de -r b0b56e0f8c7f server/bo_client/app/mixins/cell-editing-mixin.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/server/bo_client/app/mixins/cell-editing-mixin.js	Fri Jan 15 15:35:00 2016 +0100
@@ -0,0 +1,24 @@
+import Ember from 'ember';
+import ClickOutsideMixin from 'bo-client/mixins/click-outside-mixin';
+
+export default Ember.Mixin.create(ClickOutsideMixin, {
+  isEditing: false,
+  // override from ClickOutsideMixin
+  onOutsideClickEnabled: Ember.computed.bool('isEditing'),
+
+  onOutsideClick() {
+    this.set('isEditing', false);
+  },
+  click() {
+    var _this = this;
+    setTimeout(() => {
+      _this.set('isEditing', true);
+    }, 200);
+  },
+  keyDown(event) {
+    if(event.which === this.get('constants').KEY_CODES.ESCAPE) {
+      this.set('isEditing', false);
+    }
+  },
+
+});