Create system field group
Most of items have some pre-installed system reserved fields like 'status', 'date', 'featured', 'sponsored', etc.
System Fields group would make it possible for admin to modify these values. It should have its own API and it should be easy to use.
Realty has some system fields that are not displayed via regular fields display
status, submission date, last edited date, etc.
It would be great to have it flexible without any custom tweaking. You just create something like this:
status -> fieldname
id_account -> tablename:fieldname - it will automatically fetch data using Ajax and display here
Many of fields are used for all the items. The functionality should detect what fields are used and display system template where possible.