sbox-public/engine/Sandbox.System/Attributes/SelectionBaseAttribute.cs

namespace Sandbox
{
	/// <summary>
	/// Apply this attribute to a component class to mark its GameObject as a selection base for Scene View picking.
	/// For example, if you click on a child object within a Prefab, the root of the Prefab is selected by default.
	/// With the SelectionBase attribute, you can designate a specific component (and its GameObject) to be treated as a selection base,
	/// ensuring it is picked when clicking in the Scene View.
	/// </summary>
	[AttributeUsage( AttributeTargets.Class )]
	public sealed class SelectionBaseAttribute : Attribute
	{
		public SelectionBaseAttribute() : base()
		{
		}
	}

}