Media Object Structure Issue: Unable to add text, image, shortcut

Hello everyone
I have this issue. Please feel free to throw some replies if you get my issue. Thanks :)
I have created a media object data structure and when I run the application I find that media object DS as an attachment and when I click it. I see a popup where I can add text, file, OlE and few more. Now when I click on add text, nothing pops. Similar with file and URL, whereas it works for OLE. I also can't find image and shortcut. What can be the issue?

P.S: I have just started exploring JDE. Sorry for my noob question.
Thank You