title: Click a NSPushButton programmatically with "animation"
body: <p>I just ran into a problem I already know from other programming languages/frameworks ....
  Whenever the user clicks a certain button on the keyboard, he triggers the same action than when a certain button in the GUI is pressed. ( Some guys call these "shortcuts" ;D )</p>
  
  <p>To give the user an optical feedback, I would like to sorta "click" the button programmatically rather than calling the same functions that get called when the button is clicked.</p>
  
  <p>If I set the button as a key equivalent in IB, it looks exactly as I want to have it.
  Can't do that here as the shortcut should just be enabled if the right textfields have focus.</p>
  
  <p>Couldn't find a method in NSButton or similar that sounded right.
  I'm sure you guys can give me some direction!</p>
  
  <p>Best and thanks in advance</p>