JavaScript™: (Advanced Mode only)

// Step - Usability Focal Y Slice [BB]
function %%NameSpace%%$%%InternalName%%()
  { if ($P["TL.STEP_CLIENTSTATE_EVENT"].firstValue().toUpperCase() ==
        "ATTENTION")
    { var pageHeight =
      parseInt($P["TL.STEP_CLIENTSTATE_PAGE_HEIGHT"].firstValue());
      var viewportHeight = $F.getLastFact("TL.F_E_STEP_USABILITY_ATTENTION_
                                           VIEWPORT_HEIGHT_DG_NONE").
                                           NumericValue;
    var viewportOffsetY =
        parseInt($P["TL.STEP_CLIENTSTATE_VIEWPORT_Y"].firstValue());
    var focalY = (viewportHeight/2) + viewportOffsetY;
    var sliceY = Math.floor(focalY / 10);
    var sliceY = Math.min(sliceY, 1000);
    //Cap slices at 1000 // Set fact for Report Group: No Dimension Report
    //Group
    $F.setFact("%%NameSpace%%.%%Fact1%%", sliceY);
    }
}