title: How to add custom field in Jira work log dialog
body: <p>I want to add a combo box with some elements in my JIRA work log dialog / screen. The combo box will add a String (like "[DEV] - ") in front of the work description.</p>
  
  <p>It seens to be simple, but I cannot find a tutorial in the Jira documentation... </p>
  
  <p>I have seen this plugin called Tempo. But I want to do this on my own. Not using others plugins.</p>
  
  <p>I am think about editing the jira's JSP pages, but I realized that when I update the jira version, I will have to edit the JSP again. So, I think that the best way is to develop a plugin. But I don't know how .</p>