+class KeyframePopupDelete;
+class KeyframePopupHide;
+class KeyframePopupShow;
+class KeyframePopupCopy;
+class KeyframePopupCurveMode;
+class KeyframePopupEdit;
+class KeyframeHidePopup;
+class KeyframeHideItem;
+class KeyMutePatch;
+class KeyMuteValue;
+class KeySpeedPatch;
+class KeySpeedValue;