var revealView = new RevealView();
using (var fileStream = File.OpenRead(path))
{
var dashboard = await RevealUtility.LoadDashboard(fileStream);
var territoryFilter = dashboard.GetFilterByTitle("Territory");
var settings = new RevealSettings(dashboard);
settings.SetFilterSelectedValues(territoryFilter, new List<object>() { "Americas" });
revealView.Settings = settings;
}