title: Using NSStepper to set ceiling value instead of incrementing value
body: <p>I am using a <code>NSStepper</code> along with a <code>NSTextField</code>. The user can either set the value using the text field or can use the NSStepper to change the value. I will quote my question using the example below:<br>
  Suppose the current value of my stepper is 4 and increment value of the stepper is 2:
  <img src="https://i.stack.imgur.com/RJZNk.png" alt="enter image description here"></p>
  
  <p>After I click the UP arrow on the NSStepper the value becomes:<br>
  <img src="https://i.stack.imgur.com/Wg7df.png" alt="enter image description here"></p>
  
  <p>Now Suppose the current value would have been 4.5 i.e.:<br>
  <img src="https://i.stack.imgur.com/yYj6q.png" alt="enter image description here"></p>
  
  <p>After using the UP arrow the value becomes:<br>
  <img src="https://i.stack.imgur.com/JyB4H.png" alt="enter image description here"></p>
  
  <p>What I require is that when the current value is 4.5, after using the UP arrow, the value becomes <strong>6</strong> instead of 6.5 </p>
  
  <p>Any ideas to accomplish this are highly appreciated!</p>