ALSCRIPT provides a powerful set of formatting and editing commands specifically tailored for multiple sequence alignments. It is best used in conjunction with a PostScript previewer such as Sun's PageView or GhostView since this allows the effect of changing a command to be seen quickly. In the absence of such a tool, simpler effects can be tested out without destroying too many trees in the Laser Printer!
Like most programs, ALSCRIPT is evolving as I find new problems to display, so if you have any suggestions - I shall endeavour to include them in a later version.