It IS possible to create more than one Dibz campaign for one client.
When you do this, you’re basically creating subfolders in your database, which you can later on easily filter by different parameters in the search results menu.
You can find all of the existing clients, or create new ones, by clicking on the Clients icon in the left sidebar - the third one from the top.
Selecting a client from this list gives you access to all of their active and archived campaigns.