Currently it's hard to tell which features are in the parking lot and which are in "active" releases with dates. I tried using release dates but it's not very effective.
|Release time frame|
Parking lot releases can be filtered out with the Release name filter. Add a None filter using advanced filters and select only the parking lot releases, which are shown with a gray background under the active releases. This filter will show features in all other releases, but not those in parking lots. Please see the screen shot below.