In creating a custom feature layout for use within a product, the release is shown by default but there is no way to show the Release Phase. The only way that you can then assign a release phase is to drop down the ellipsis, Link to Release Phase, and adjust there. This is particularly problematic when trying to view features that are not showing up on the Gantt because they are not in a release phase. It would be helpful to see the release phase shown in the Feature details to quickly change it.
Thank you for your idea. One idea that may help here is that it is currently possible to add the release phase to the feature cards shown on the features board. This article explains how to customize your feature cards.
At this time we do not have specific plans to add release phase to the feature details view, but we will continue to monitor customer feedback on this idea.
Having this option for assigning sprints to tasks would be ideal.