You can easily manage the Marketing Campaigns by using the left side views, here you have as following:
Type >> Here you have all your existing campaigns splitted by Type
Seller Leads Campaigns >> Organise and manage your seller leads campaigns through this view. All campaigns are ordered by Next Schedule Date, so you can keep track of what campaign and when you need to send them.
Buyer Leads Campaigns >> Build powerful buyer lists by actively doing marketing for it. With this view one can organise buyers acquisition strategy
Private views >> Here you can create views that only you are able to see