I definitely agree with the need for customizable title, not only for the sake of this feature request, but simply because dc:title is not always useful. As for sub-items I would prefer to keep them coupled inside the item, rather than have them in new listing or as sub-items.
I have another valid example of group of properties, that cannot be easily solved with the current way of things. Let’s say I have an item with multiple inscriptions. Each inscription may be related to person (inscriber), it may have date, description, interpretation, position or more info. Another repeatable area is about item dimension (its parts). It may need properties like measured part, measurement unit, value, date of measurement… Same with material for example for knife with wooden handle. And there are plenty more group of properties and in most cases they’re not reusable for other items. What would be recommended way of filling this kind of info into Omeka S according to core developers?
I was thinking about adding inline tab inside Item form (similar to what Geo plugin does) and prepare the group of fields there with possibility to repeat them. I’m concerned about the number of tabs that this will create, but it’s OK. Also I haven’t look deeply into database structure so I’m not sure if I need standalone table(s) for this. Could this be the way to go?