controller.setWidgetKeyBinding(i18n("<b>Double click</b> to add a keyframe, <b>Shift drag</b> for proportional rescale, <b>Hover right</b> for toolbar, <b>Click</b> on a center to seek to its keyframe"));
controller.setWidgetKeyBinding(i18n("<b>Double click</b> on center to resize, <b>Double click</b> on line segment to add new point, <b>Double click</b> point to delete it, <b>Double click</b> background to create new keyframe, <b>Hover right</b> for toolbar"));