Acer 240 - Manual (Page 52)

2 Customizing my computer 44
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Launch Manager
There are six Launch Keys located above the keyboard. The Wireless
and Bluetooth buttons are not programmable. Launch Manager only
allows you to set the other four Launch Keys. See “Launch Keys” on
page 19 for more information.
You can access the Launch Manager by clicking on Start, Programs,
and then Launch Manager to start the application.