With Track View in Dope Sheet mode, right-click a green Driver key of a Point Controller container to open the Driver Track Key Info dialog. This dialog lists all sub-keys of the Point Controller container at a given point in time, and gives easy access to each sub-key's data. To access the info for a sub-key, click it in the list.
Interface

- [key arrows]
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Moves to the next or previous key.
- Time
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Moves the Driver key to a different frame or time.
- Sub Keys list window
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Displays all the animated sub-object keys at a particular frame or time.
- Select Point
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Select a node in the List Window and the corresponding node in the viewports is selected, if the corresponding sub-object level is active.
- Key Frame Properties
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Displays and lets you adjust interpolation and position. See Bezier Controller.