There is a variety of tools available to multi site users to help manage large portfolios and identify problem sites.
Sites function – gives a summarized view of your estate, highlighting sites with recent activity or the most outstanding recommendation
Analysis charts – a fourth chart is accessible to multi site users only that allows you to compare pest activities across your sites
Site collections - enables you to group several sites together for reporting purposes.
Site quick jump – allows to quickly move between the sites within your portfolio