I have enabled the external storage app but I cannot find the “Add Storage” drop down
" To create a new external storage mount, select an available backend from the dropdown Add storage . Each backend has different required options, which are configured in the configuration fields."
As superuser
Select settings from the menu at the top right of the screen (what is that called?)
On the resulting page there is a menu down the left hand side
Half way down that it says Administration
Below that will be External Storages[sic]