Custom Debug Actions
Debug actions use the PlayMakerDebug system to display debug information in a panel anchored to the screen or a GameObject. They are useful to debug information specific to a state because they only run while a state is active.
The easiest way to make a Debug Action is to extend from BaseDebugAction
The base class handles adding and removing the DebugPanel and provides a Label that you can use to debug text.
DebugStateTime shows how little code you need:
using System;
namespace HutongGames.PlayMaker.Actions
{
[Serializable]
[ActionCategory(Category.Debug)]
[ActionDescription("Debug the time spent in the current state.")]
public class DebugStateTime : BaseDebugAction
{
public override void Execute()
{
Label.text = State.ActiveTime.ToString("0.00");
}
}
}

Custom UI
Add custom UI to the Panel visual element. The Label is provided for convenience, but you can add any UI you want.