Structure Symbols MORE II supports any combination of headline labels, including Custom Labels, throughout all outline levels. MORE II still has the Leader Character style of headline labels used in previous versions of ThinkTank and MORE. This is the default label style and has the most information about outline structure.
Because the other label styles don’t completely denote all structural information about the outline, MORE now displays special symbols about an outline’s structure. These symbols are called structure symbols. They indicate when there is undisplayed information at subordinate levels, clones, rules, the presence of notes windows, and/or marked headlines. These structure symbols are for on-screen display only and will not print out. You can turn structure symbols on or off by selecting Show Structure Symbols in the Display Options dialog box.