Server drop-down list

Here you can select servers to be synchronized.

Synchronize selected/all objects

You can choose the objects to be synchronized using the check-boxes in the list and then click Synchronize selected or Synchronize all button. All objects can also be synchronized using the Synchronize all objects link above the list.

Delete selected/all

If you do not wish to synchronize some changes, you can delete them using the Delete selected or Delete all buttons.