code: function fnAddStandaloneBusyIndicator () {
  		this._oBusyBlockState = BlockLayerUtils.block(this, this.getId() + "-busyIndicator", this._sBusySection);
  		BusyIndicatorUtils.addHTML(this._oBusyBlockState, this.getBusyIndicatorSize());
  	}
docs: Adds a standalone BusyIndicator.
  The block-layer code is able to recognize that a new block-layer is not needed.