Hi Kasai
You need to update your Flash Player, not the plugin version through Google Chrome/Firefox.. the easiest way to do this is launch internet explorer and click on this link to update it.
http://get.adobe.com/flashplayer/
Once updated you should be able to see more drop down options.
Our website is down at the moment due to a problem with our hosting provider closing down and we had to move our domains over to another provider which took a while. We are currently re-designing 2D GUI HUD Creator and its website to be more interactive.
More news on this soon, but in the meantime we will have something temporary up on our website next week - so people who have the current version can update their build to the latest version and we'll make an announcement on the forums here.