An important factor for me is low maintenance and EASY to add items. It would be helpful to have a way to add feature items in-line in the list or board views.
For example, a blank row at the top, maybe a dimmed + outline, type feature name in, default could preselect the active product, and tab through it.
you can already add features in board view, at the top of each release column there's a + sign?
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