This guide requires you to be elevated.
Move your mouse to the left side of the screen to show the navigation bar.
To add an alternative logbook, click the "Edit" button next to the "Logbook alternative" selector.
Now the list of logbook alternatives can be seen. Here you can edit the name and description of existing logbook alternatives. You can also make logbook entries public or mark an logbook as default. A new logbook alternative can be added by clicking the "Add" button.
Enter the desired logbook name and description, and select if the logbook entries will be public.
Save the logbook alternative.
Select your new logbook alternative and continue with configuring your logbook alternative as described in the logbook configuration guide.