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Connect a third and fourth Switch in the same way. With the CAT5 KVM 16 Port model, connect up to up to 256 computers through cascading. You must define a hotkey to display the OSD of each Switch. These hotkeys must be different for the top and bottom layers. The hotkeys can be any of the choices as set out above on page 14. To add/change a hotkey: 1. On the line to which the Switch is connected, press Tab to jump to the HKEY column. 2. Toggle between the options using the Space bar. 24. The Tim