Like any tool, you can experiment to create and discover the sound you want. For both wind and deflector properties, a fixed value can be set along with a positive or negative deviation. All of these properties can be further automated over time, by adding any number of points in the curve editor.
The Playback rate can be modified using an RTPC in the Time section of Properties, as can any property with an RTPC indicator. Looping needs to be enabled in the General Settings tab, just like any sound object, while fixed parameters for loop duration and additional random duration are set in the Time section.