Dynamic alert thresholds in 10.7

So, Rob let me see if I have this straight.

For nodes, the Baseline Data Collection Duration applies a rolling threshold calculation for any node for which the "Use Dynamic Baseline Thresholds" button has been pushed. Is that accurate?

For interfaces, is it only the Interface Baseline Collection Frequency setting that controls how thresholds are applied for interfaces? Or, does the Baseline Data Collection Duration also figure into it?

And finally, are the following statements true related to the options available for setting alert thresholds for nodes and interfaces?

Option 1: Use the global thresholds listed on the Orion Thresholds and NPM Thresholds pages

Option 2: Click the Override Orion General Thresholds and set a STATIC value for the threshold.

Option 3: Click the Override Orion General Thresholds AND use click the Use Dynamic Baseline Thresholds button to employ "rolling thresholds"

Thanks.