Add Reloads in Site Metrics

Right now, Reloads metric is available only for the Pages Dimension in Adobe Report Builder. If we need to see the Reloads for overall site, we need to use Page Dimension to sub-total it based on the ganurlarity which is tough to build the auto dashboards. Have created a calculated metric PageViews without Reloads (Page Views - Reloads) and automate it using Report Builder, but the option is not available in Site Metrics(Available in Adhoc Analysis). It will be great if we can add Reloads to the Site Metrics.