Field Quick Cardinality

Provides a quick and easy way to display the cardinality (ex. how many values a field is allowed to store) of field instances through the UI, without having to go to the settings screen.

This is especially useful when using the Manage Fields overview page for reference (eg. to develop an importer) and a bundle of an entity contains many fields from which some accept only one value, some two or three and some unlimited.


Source: https://drupal.org/project/project_module/feed/all