You can add attributes to your Component's properties to change how they look in the editor.

[Hide]

Hides the property from the editor. Will still be a property, and will still save and load - but won't be visible.

[RequireComponent]

Added to a property containing a component. The component will be created if it doesn't exist.

[Group( "Helpers" )]

Will create a group box and add this property to that group. Mark multiple properties to add them to the same group.

[ToggleGroup( "UseHelpers" )]

A group that has a checkbox to turn it on and off. The name should match the name of a bool property to hold the state.

[Title( "My New Title" )]

Change the title of the property in editor, instead of using the property name.

[Feature( "Helpers" )]

Adds this property to a separate feature tab. All other properties will be in a tab called General.

[FeatureEnabled( "Helpers" )]

Should be used on a bool property. This allows you to turn the feature on and off by removing or adding the tab.

[Order( 100 )]

Change the order of this property in the editor. Their position in the source usually orders them.

[ShowIf( "PropertyName", 3 )]

Only show this property if another property is equal to the value.

[HideIf( "PropertyName", 3 )]

Hide this property if another property is equal to the value.

[Range( 0, 100 )]

When used on a number property, will convert it to a slider with a min and max value.

[Space]

Add a space above the property.

[Header( "My Header" )]

Add a header above the property.

[ReadOnly]

Don't allow changing this property.

[Flags]

Indicates that an enum can be treated as a set of flags. Allows for selecting multiple flags at once from the dropdown instead of just selecting one.

[InlineEditor]

Tell the editor to try to display inline editing for this property, rather than hiding it behind a popup.
(useful for custom Classes/Structs)

[WideMode]

Fill the width of the editor with the widget and put the label above instead of to the left of the ControlWidget. Can optionally hide/remove the label entirely.

String-Specific

[Placeholder( "Your mother's maiden name" )]

When used on a string property, will show this text when it's empty.

[TextArea]

When used on a string property, show a multiline text area instead of a single-line text edit.

[FilePath]

When used on a string property, creates a File Picker allowing you to select any file, with an optional Extension you can use to specify certain file type(s).

[ImageAssetPath]

When used on a string property, creates a ResourceControlWidget allowing you to select an image file, setting the string's value to the path of the image.

[MapAssetPath]

When used on a string property, creates a ResourceControlWidget allowing you to select a vmap file, setting the string's value to the path of the map.

[FontName]

When used on a string property, creates a Font dropdown allowing you to easily select a font by it's name.

[InputAction]

When used on a string property, creates an Input dropdown comprised of all Inputs configured in your Project Settings, allowing you to easily select an Input by it's name.

Curve-Specific

[TimeRange]

Used to specify a default or clamped time/x-range on a curve

[ValueRange]

Used to specify a default or clamped value/y-range on a curve

ActionGraph-Specific

[SingleAction]

When used on any ActionGraph-compatible property, it will only show a single action to edit instead of a list that allows you to create multiple