The Cloud Explorer view in Designer lists all the active solutions present in the Cloud Container along with the packages and Integration Server elements. However, if a solution is inactive in the Cloud Container, then Cloud Explorer does not display the packages or elements of the corresponding inactive solution.
The Cloud Explorer shows a read-only view of the solutions present in the Cloud Container which means you cannot perform any development activity on the solutions. To know the Cloud Explorer view toolbar buttons, see
Cloud Explorer View Toolbar.