Above the Images and Filesystem panes in the editor you'll find several buttons for working with your image:
| Icon | Description | 
|---|---|
| 
                            | Add a new binary. | 
| 
                            | Add a new shared library. | 
| 
                            | Add a new DLL. | 
| 
                            | Add a new symbolic link. | 
| 
                            | Add a new file. | 
| 
                            | Add a new inline file (i.e. a file whose contents are specified in the buildfile). | 
| 
                            | Add a new directory. | 
| 
                            | Creating a new image | 
| 
                            | Optimizing all libraries in your image | 
| 
                            | Rebuild the current project. | 
| 
                            | Combining images |