The node listing table allows multiple selection. Whenever there is any row selected, both "delete" and "delete and uninstall" button will be enabled, since user may select multiple types of node, including CONFIG, SSH and DCOM, we cannot just enable the Delete button only.
Just like when there is start and stop button on instances table, both button will be enabled whenever any row is selected, even though the start instance button doesn't apply to instance that already started. It will just be an no-op.
The page title help hasn't been updated to mention about the new "Delete and Uninstall" button. It should explain what "Delete and Uninstall" means, and mention that if the type is CONFIG, the CONFIG node will be deleted as uninstall will not apply.
Transfer to 'doc' for adding this info.