ique with respect to other actions on this state)</p>
<p><i>actfn</i> Function to call when action is triggered</p>
<p><i>actTrig</i> Trigger name (string) for this transition (FStEng v1.5)</p>
<h4>Returns</h4>
<p>Nothing</p>
<h4>Description</h4>
<p>Add an internal action for the state. If the developer wants to manually code 
  the event handler, then the developer uses <code>execIntAct()</code> to fire 
  this action when it is triggered. To use the v1.5 event handling mechanism, 
  simply tell this metho