Configuration
Creating a custom field for Items
Go to your Settings in the bottom left corner of your screen
Click Fields
Make sure you selected Items and click Add field:
Choose your field type
Enter the field name
Choose to make the field appear when adding a new item
Choose to make the field required
Choose to add this field as a filter option for all users
Click Add field
You can change the order of the fields by clicking on the left side of the field name and moving it up or down
Using Item Fields
Filling in custom fields for a new Item
Click Items, next click New Item
Fill in the required fields (basic and custom fields)
Click Add (top of the screen)
Updating custom fields of an existing Item
Click Items and select an Item
Go to the Info tab
Modify one or more fields by clicking on it and typing or clearing its value
The Item is automatically saved
Updating custom fields of many Items at once
Click Items in the Table view
Select multiple Items using the checkboxes
Click Bulk actions, next click Edit items...
Update the values of one or more fields
Click Update to save your changes