This command temporarily hides all buttons which would obscure the text, pictures, and diagrams on the slides in your stack. The stack can then be printed using the standard PRINT STACK… command so as to show accurately the content of the lecture. The slides can later be restored to their intended original state by invoking the RESET ALL SLIDES command.
I find it works well to print slides at half size. This actually puts images of eight slides on each page, but I find there is usually no loss of clarity in the size reduction.