To create a custom attribute, click on the Settings icon in the main left vertical menu panel. Within the Settings screen, click on Custom Attributes in the left column.
Click on the New Custom Attribute button to begin. Add a title for the new custom attribute and select the field type. Click Next to continue.
Select the module or modules to link the custom attribute; click Next to continue. Select the projects to include the custom attribute and then click Next. Projects listed will be those for which the logged in user is a project owner.
Confirm the details of the new attribute and click Add to finalize.
The custom attribute can now be found and used in the selected projects and modules. In the module, custom attributes are found in right side vertical menu of the details window under the icon.