Using the Toolbar

Help F1 -- Help:
Displays the help file that you are currently reading.
Run F2 -- Run/Reboot:
Starts the emulated machine if it is not currently running, or reboots (power-cycles) it if it is currently running. (Use Ctrl+F2 to simulate Ctrl+RESET.)
Drive 1: F3 -- Drive 1:
Selects a disk image file for drive 1.
Drive 2: F4 -- Drive 2:
Selects a disk image file for drive 2.
Swap Disks F5 -- Swap Disks:
Swap the disks in drives 1 and 2.
Toggle Window / Fullscreen F6 -- Window Size/Full Screen:
Toggle between windowed 1x and 2x video modes. (Use Ctrl+F6 to switch to full screen video mode.)
Debug F7 -- Debug:
Displays the actual assembly language instructions that the emulated machine is executing.
Configure F8 -- Configure:
Allows you to customize the emulated machine, and the way the Apple's input and output devices are mapped onto your PC's input and output devices.