64. In a data processing system for composing documents having multiple lines of alphanumeric data, means for entering data and commands relating to a document to be composed by an operator, data processor means for processing said data and executing commands, memory means coupled to said data processor means for storing data and commands, and at least one output means for presenting the document, said at least one output means including a display device, said data processing system comprising: a. means for assigning a first name to represent and be associated with a first set of data presentation characteristics upon entry of said first name via said means for entering; b. means for selecting a first et of data presentation characteristics to be associated with said first name; c. means for displaying on the display device a portion of the text; d. means for defining a beginning and ending of at least one range delineating document portions for which the first set of characteristics are desired by associating place marks with the document text which are not displayed with the text to the document composer during composition and which define at least the range beginning and the range ending; and e. means responsive to the entry of said first name for interactively presenting the data in the defined range with said first set of characteristics on the operator's display device; and f. means for insuring that all other document portions previously associated with said first name ar presented having said first set of data presentation characteristics, and wherein said operator's display device is a CRT and wherein said means for selecting a first set of data presentation characteristics includes means for displaying on the CRT a detailed specification for said first name, said detailed specification containing a plurality of characteristic selection areas, and means for independently selecting data presentation characteristics for each of at least a plurality of output means including said CRT such that the data presentation characteristics selected for any one of said output means do not affect the data presentation characteristics selected for another of said output means, to thereby associate data presentation characteristics with said first name.
85. Apparatus according to claim 64, including means for storing all the assigned names, their associated data presentation characteristics, and the document portion encompassed by the names; display manager means for merging all data presentation characteristics relating to a predetermined portion of the document; said display manager means further including means for presenting the data in accordance with a composite set of characteristics.