* If you have installed channels manually before installing WebTools, you can click on the "Migrate manually/previously installed channels" to make WebTools aware of them.

* You can also search for updates for all installed channels managed by WebTools via the "Check for updates for all installed channels" button.

* You can select a category on the menu on the right.

* Category names contain installed/total available channels.

* You can expand the items by clicking on them.