Season’s Greetings made using Power Map
SQL Sentry Plan Explorer has a number of views available to help you understand the rich information stored within Execution Plan files. It also can provide you with additional details when you run Get Actual Plan on the query directly.
Current Power Pivot / Tabular Model does not support dynamic threshold settings for KPI. However, some customisations on the data model can be applied to enable dynamic KPI threshold in Power View.