Centrally Manage and Subdivide Field Groups

It should be possible to create, rename, and sort groups of custom fields centrally. Fields are assigned to an existing group to prevent typos from creating unintended new groups.

An additional sublevel should, for example, allow for “LAPS → Rotation.” Groups should be expandable and collapsible on the device page. Existing group names and assignments must be carried over.

Optionally, it should be possible to specify suitable device types for a group once. Empty groups can be hidden.