- unique: only a single entry line is generated; its characteristics are given by the next fields of the screen.
- repetitive: a variable number of lines are generated, according to the value of an index that varies within a range evaluated from the formulas shown in the table below.
- linked table: an entry is generated for each record in a table linked to the first table (generally a table of lines associated with the header table). In this case, it is possible to have a second linked table to specify analytical distributions.