I would like to know how I can address shortcuts for more than 4 workspaces in GNOME.
Unfortunately, I can only see 4 entries for the workspace 1-4 in the keyboard settings.

I would like to switch to workspace 5 when I press Ctrl+5. It already works for the Workspaces 1-4.
It is possible to create a new shortcut, but I don't know the command which I have to use.