You can add new items by clicking the Items button at the bottom of the edit window. When you click this button, the items window appears, where you can click the + button to add new items to the list, like in the following image.
You can edit the following fields of the items entry.
| UI element | Description | Required |
|---|---|---|
| Field Id | A text input field for the numeric identifier of the item. The identifier must be unique within the structure. | Yes |
| Name | A text input field for the item name. The name must be unique within the structure. | Yes |
| Type | A combined text input and drop-down field for selecting the data type of the item. The data type list is populated from the Matter Data Model template. | Yes |
| Length | Length of the item in bytes. Applies only to the array, and composite data type. Must be higher than 0 and Min Length. |
No |
| Min Length | Minimum allowed length of the item in bytes. Applies only to the array, and composite data type. Must be higher than 0. |
No |
| Min | The minimum allowed value of the item. Applies only to the numeric data types. The minimum value must be smaller than Max value and must fit in the numeric type bounds. | No |
| Max | The maximum allowed value of the item. Applies only to the numeric data types. The maximum value must be greater than Min value and must fit in the numeric type bounds. | No |
| Is Nullable | Toggle button to define whether the item can be null (toggle enabled) or not (toggle disabled). | No |
| Is Fabric Sensitive | Toggle button to indicate whether the item is fabric-sensitive (toggle enabled) or not (toggle disabld). | No |
| Delete (bin icon) | Delete the item from the list. | No |