Each line can be printed out as a single block or broken into as many blocks as you wish. However, there may be no more than 150 characters in each line. Each block requires a space to separate it from the block following, so a line with ten blocks of ten symbols each would require 110 characters and would fall within the 150-character limit. There is a nine-column blank space at the left end of each line in which you may add labels for the line. In effect, you are selecting a repeat unit for the figure.
Every line selected with a capital letter is numbered at each end.
Each type of line is described in detail below. You should think of the figure as being based on a primary sequence that Publish identifies first. In the program's prompts, translation ranges and the overlay positions for the difference lines are in terms of the original coordinates of the primary sequence. The figure is only as long as the range chosen from the primary sequence. Number Line creates numbers from your offset that number every twentieth symbol.