Interactive GRID | Rows Per Page on Toolbar

function(config) {
    var $ = apex.jQuery,
        toolbarData = $.apex.interactiveGrid.copyDefaultToolbar(),
        toolbarGroup = toolbarData.toolbarFind("actions1");

    toolbarGroup.controls.unshift( {
        type: "SELECT",
        action: "change-rows-per-page"
    } );
    // Optional if you want the word Rows like IR had. But this is probably bad for  
    // accessibility because it isn't a label element like in IR  
    //toolbarGroup.controls.unshift( {  
    //    type: "STATIC",  
    //    label: "Rows"  
    //} ); 
    config.toolbarData = toolbarData;
    // the workaround for 5.1 bug given in the forums is no longer needed
    return config;
}