# Plugin Usage ## Add Constraint
Button in toolbar
### Description Creates a **UIAspectRatio** constraint which maintains your GUI's height and width ratio across devices. **AspectRatio** is automatically calculated by the plugin. ### Usage Select all children of your **ScreenGui** object and click **Add Constraint** button to scale. {% hint style="info" %} This feature is available to AutoScale Lite and Plus users. SmartScale has replaced this feature in AutoScale Nightly. {% endhint %} ## Unit Conversion
Menu toggle button in toolbar
Menu view once toggled
### Description Allows easy conversion of **Size** and **Position** property units of **GuiBase2d** objects. ### Usage Select your **GuiBase2d** objects in explorer and click the relevant button options to convert **Size**/**Position**. {% hint style="info" %} Recommended to use **Scale** unit for both Size **and** **Position** of your **GuiBase2d** objects for best scaling results. {% endhint %} ## Plus Menu
Menu toggle button in toolbar
Menu view once toggled
### Description Allows you to change default properties of your **GuiBase2d** objects. Hate how Roblox uses **Offset** unit for **Size** by default? You can change that here. ### Usage Open the Plus Menu and enable desired settings. Your settings will save and load automatically. {% hint style="info" %} This convenient feature is available to AutoScale Plus and Nightly users. {% endhint %} ## SmartScale
Button in toolbar
{% hint style="warning" %} This is an beta feature for AutoScale Plus and Nightly testers, still needs code optimisation to improve speed. {% endhint %} ### Description SmartScale feature is an attempt to intelligently make scaling decisions for users. ### Usage After creating your GUI, select the **ScreenGui** and press SmartScale button and it will scale everything in the ScreenGui for you.\ \ Alternatively, you can select a single GUI object and that particular object will be scaled\ e.g. Select a **TextBox** and it will add dynamic text scaling to only that specific GUI object ### Behaviour Selecting **ScreenGui** Objects * Applies **UIAspectRatio** constraint with calculated ratio if not already present to all children * All **GuiBase2d** descendants' Position and Size property converted to Scale unit if property exists * All **TextScaled** property objects are dynamically text scaled Selecting standard **GuiBase2d** Objects * All objects' Position and Size property converted to Scale unit if property exists * If parent is a **ScreenGui** object, **UiAspectRatio** constraint applied to self Selecting **TextScaled** property Objects * If **TextScaled** Enabled * Adds **UITextSizeConstraint** if not already present, max size being original font size (using TextBounds property * If **TextScaled** Disabled * Adds **UITextSizeConstraint** if not already present, max size being original font size and **enable** TextScaled property Selecting standard **ScrollingFrame** Objects * **AutomaticSize** is enabled, set to XY * Sizes of all children are set to Offset. {% hint style="info" %} Credit to @VarysThe Eunuch for helping with research on dyanmic text scaling methods. {% endhint %}