I don't have much to add to the larger proposal—the current filtering options work fine for me—but wanted to make sure you were aware that you can add a start date column to any perspective. No need then to use the inspector to change start dates. (I don't intend to discount your proposal, which may be useful to many. I just wanted to make sure you know about all the features that are currently available.)
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Cheers,
Curt
Cheers,
Curt