Displaying multiple charts in a single instance of Horoscope
How Horoscope manages child windows (aspect grid, natal astrodyne table, etc.) for multiple charts
Instantiating multiple instances of Horoscope to display multiple charts
Minimizing and restoring chart windows
Using the Window menu to manage multiple Horoscope windows
It is common to have multiple analysis windows, such as Progression Report, Aspectograph, Progressed Astrodynes and graphical charts, open at the same time for a give chart
Using the Window menu to find what you want
Comparing charts using the Window menu Tile command