Unity - Utility function that pauses unity editor.

UnityDebugPauseEditor.cs

using UnityEngine;

public class DebugPauseEditor
	: MonoBehaviour
{
    public static void Pause()
    {
        var target = "UnityEditor.EditorApplication";
        var assemblies = System.AppDomain.CurrentDomain.GetAssemblies();

        foreach (var assembly in assemblies)
        {
            try
            {
                var type = assembly.GetType(target);
                var property = type.GetProperty("isPaused");

                property.SetValue(null, true, null);
            }
            catch
            {
                // ignore
            }
        }
    }
}