# Using Smart UI Components All the components are basically empty, they don't contain any of the code required to operate. Instead, the addons are the way to communicate with the framework. If you simply add a behavior to your object without adding the SmartUI plugin, it will fail to run because it coudln't find the libraries required. {% hint style="warning" %} By desing, you can **only add one SmartUI component behavior** to your objects. {% endhint %} ## Adding a Behavior

Step 3.The Behavior properties will appear when selecting the object.

## Main Features All the SmartUI components are children of the same line of inheritance, therefore, many properties and capabilities are common. {% hint style="success" %} These properties can be accessed also through ACE's, either to pick them or the change them, giving you a higher level of flexibility to customize them. {% endhint %}

Property	Description
Enabled	Enables or disables the component. For components that hold a value, it can still be set, but the animations and event triggers won't be called.
Index	Is an integer number that influences the document flow navigation priorities. See document-flow ⚠️Only available for focusable components.
Invisible Component	Allows interactions and animations for the component, even if the visibility is turned to invisible. Opacity has no effect on this evaluation. ⚠️ Only available for focusable components.
Automatic color	Changes the tinting of the object to provide a visual aid when focusing. The color can't be changed, this feature is meant to provide a quick visual aid. It's recommended to be off when releasing your project. ℹ️ It's recommended to uncheck this property on your final export, to keep the tint of the object unchanged.
Component's Name	The name for the component. It doesn't have to be unique in general, but if you are using composite components like Scrollbars or Dialogs, the name must be unique.