You can really create nice user experiences when quick create forms are used to create a new record from a subgrid. The opportunity product grid is a nice example. Those quick create forms often only make sense when they are launched from the context of a related record.

However, when an entity is enabled for quick create, quick create forms are automatically added to the global quick create menu, often leading to errors and a bad user experience.

It would be nice to have a setting where you can enable/disable a quick create form to appear in the global quick create menu.