Databases are "Main parent" for 4 types of objects:
- Dataset group
- Dataset updating
- Dataset edition
- Dataset archive
The first 3 items are live objects whereas the archives are just stored there and are not managed after they're published.
The list of Archives can be very long, and this potentially makes the "is main parent of" list very long too. So it would be helpful if the archives were grouped together at the bottom of the list and be visually separated from the 3 types of live items.