When I develop form, new element is added to inspector view, but I don't see it edited on screen (in visual form). Changes are only visible after I create build and start emulator. Is this proper behavior?
Are you working on class extending javax.microedition.lcdui.CustomItem? In this case, you will see just a title/label of the component and an icon indicating this is a custom component. We don't support visualization of CustomItems or Canvases. On the other hand, if you added standard item (i.e. StringItem, ImageItem, etc.), changes should be visible in the screen editor. If not, please send an email to users (at) mobility.netbeans.org. The email message should contain a screenshot of your IDE, together with the design file (.mvd).