I have recently been playing with SQLdeveloper and came around an interesting feature: you can group connections in folder. This will prevent you from having a very big list of connections.
To group your connections you must do the next thing:
1. Select two or more connections
2. Press your right mouse button
3. Choose “Add To Folder” -> “New Folder”
The result will look like this:
Nothing very special but it’s a very handy feature!