Is your feature request related to a problem? Please describe.

Whenever you model a collection you need an identifier field for its entries. Most of the time the collection does not have a natural identifier field (i.e. a primary key in RDBMS parlance). For this reason the community developed a range of custom widgets to fill this hole in the NetlifyCMS standard widget library, that does not offer such a basic widget.

Describe the solution you'd like

Create an id widget to generate an universal unique id code (i.e. UUID). This widget should also have a boolean hide option to allow the associated field to be hidden from the UI.

Describe alternatives you've considered

Use a community based custom widget, but none of them currently allows to hide the field from the UI.

Additional context

Anyone intending to migrate a three-tire web application to JAMstack architecture will need to model collections and collection relationship. And you can't do this without having an id widget resembling synthetic primary key in RDBMS parlance.