While you have been working with your model you add more and more specific attributes of a particular type to the project, making the list of the available attributes in a project longer. In the meantime making some changes in your model may result in having some attributes available on the active list but not used in the model. As a result of this you may end up with a very long list of attributes. It makes the list of your attributes not clear and messy.
Learn how to use Attributes Manager to work with your models more efficiently.
Attributes Manager is a convenient tool to access lists of all attribute labels and to manage them quickly and efficiently improving your productivity.